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Chapter 6: Fibers Review

Total questions: 220

Worksheet time: 2hrs 22mins

Name
Class
Date
1.

Using the provided micrographs, identify the differences between the cotton on the left image and the rayon on the right image.

a)

Cotton fibers appear twisted and irregular, while rayon fibers appear straight and uniform.

b)

Cotton shows parallel, smooth filaments, while rayon shows ribbon-like twists.

c)

Cotton displays varying thickness with frayed edges, while rayon shows consistent thickness with smooth edges.

d)

Cotton strands run mostly parallel in the field, while rayon strands are tangled and crossing.

e)

Cotton shows more crossings and entanglement, while rayon shows mostly parallel alignment.

2.

Protein fibers: An insect fiber is spun by a silkworm to make its cocoon; the fiber reflects light and has insulating properties. Which fiber fits this description?

a)

Silk

b)

Wool

c)

Mohair

d)

Angora

3.

Protein fibers: Wool is an animal fiber coming most often from which source?

a)

Sheep

b)

Silkworm

c)

Cotton plant

d)

Petroleum derivatives

4.

Mineral fibers: Which is identified as a natural fiber that has been used in fire‑resistant substances?

a)

Asbestos

b)

Rock wool

c)

Fiberglass

d)

Nylon

5.

Mineral fibers: The close‑up image shows fiberglass strands. According to the text, fiberglass is classified as which type of fiber?

a)

Manufactured inorganic fiber

b)

Natural mineral fiber

c)

Plant‑based organic fiber

d)

Animal protein fiber

6.

Synthetic fibers (made from derivatives of petroleum, coal, and natural gas): Which synthetic fiber is described as the most durable of man‑made fibers and extremely lightweight?

a)

Nylon

b)

Polyester

c)

Acrylic

d)

Spandex

7.

Synthetic fibers: Which is identified as the most widely used man‑made fiber?

a)

Polyester

b)

Nylon

c)

Acrylic

d)

Spandex

8.

Synthetic fibers: Which fiber is noted for extreme elastic properties?

a)

Spandex

b)

Acrylic

c)

Nylon

d)

Polyester

9.

Fabric production: Most fabrics are composed of individual threads or yarns made of fibers and are constructed by many methods. According to the text, most fabrics are either which of the following?

a)

Woven or knitted

b)

Felted or laminated

c)

Bonded or crocheted

d)

Knotted or laminated

10.

Fabric production: Which qualities are listed as individual qualities of different fabrics? Select all that apply.

a)

Stretch

b)

Absorbency

c)

Water repellence

d)

Softness

e)

Durability

11.
Question Image

Weave terminology: Match each term to its description.

a)

Yarn

1.

A continuous strand of fibers or filaments that may be twisted together

b)

Warp

2.

Lengthwise yarn

c)

Weft

3.

Crosswise yarn

d)

Blend

4.

A fabric made up of two or more different types of fibers

12.
Question Image

Match each weave pattern to the design it resembles, based on the illustrated weave diagrams of plain, twill, and satin.

a)

plain

1.

checkerboard

b)

twill

2.

stair steps

c)

satin

3.

long floats

13.

Which weave pattern is characterized by warp and weft yarns passing under and over each other alternately, creating a checkerboard design?

a)

plain weave

b)

twill weave

c)

satin weave

d)

knitted fabric

14.

In a twill weave, how does the warp yarn pass over the weft yarns before going under one?

a)

Over one to three weft yarns

b)

Alternately under and over each weft yarn

c)

Over four or more yarns

d)

It does not interlace uniformly

15.

Which fabric is one of the most common examples of a twill weave?

a)

Denim

b)

Satin

c)

Plain cotton sheeting

d)

Knit jersey

16.

Which weave pattern has yarn interlacing that is not uniform and creates long floats?

a)

Satin weave

b)

Plain weave

c)

Twill weave

d)

Knitted fabric

17.

In a satin weave, the interlacing weave typically passes over how many yarns before going under one?

a)

One

b)

One to three

c)

Four or more

d)

It alternates every yarn

18.

Which statement best describes how knitted fabrics are made?

a)

By interlocking loops in successive rows and drawing them through another series of loops

b)

By alternate over–under interlacing of warp and weft yarns

c)

By passing warp yarns over one to three weft yarns to form diagonals

d)

By passing yarns over four or more yarns to create long floats

19.
_______ is an example of a synthetic fabric.
a)
Wool
b)
Silk
c)
Cotton
d)
Nylon
20.
Which of these materials is an example of a synthetic fabric?
a)
Wool
b)
Silk
c)
Cotton
d)
Nylon
21.
_______ is a synthetic fabric.
a)
Wool
b)
Silk
c)
Cotton
d)
Nylon
22.

Silk fibre is obtained from the _____ of the silk moth.

a)

Cocooon

b)

Hair

c)

Fleece

d)

Cocoons

e)

Skin

23.

Wool is obtained from the ____ of sheep.

a)

Silk

b)

Sheep

c)

Fibre

d)

Fleece

e)

Skin

24.

Llama & Alpaca, found in _______. (Llama & Alpaca kha milti hein)

a)

India

b)

Japan

c)

North africa

d)

South America

e)

Chennai

25.

Fibres of _______ resemble that of silk and hence, it is popularly known as ‘artificial silk’.

a)

acrylic

b)

polyester

c)

rayon

d)

nylon

26.

One of the advantages of nylon over rayon is that nylon:

a)

Is wrinkle free.

b)

Has low elasticity.

c)

Is a natural fibre.

d)

Is a good conductor of electricity.

27.

Which of the following material is a mixture of two fibres?

a)

Jute

b)

Polywool

c)

Polyester

d)

Nylon

28.

Which of the following do not provide wool?

a)

Alpaca

b)

Goat

c)

Yak

d)

Dog

e)

Camel

29.

Pashmina shawls are obtained by the under fur of ________. (Pashmina shawls kiski under fur se milti Hein.)

a)

Yak

b)

Llama

c)

Camel

d)

Alpaca

e)

Kashmiri goat

30.

Yak wool is common in _______. (Yak wool _____ mein common hei.)

a)

Tibet & whole india

b)

Whole India & ladakh

c)

Japan

d)

China

e)

Tibet & ladakh

31.

Mohair is obtained from _____. (Mohair kisse milti hei.)

a)

Yak

b)

Camel

c)

Alpaca

d)

Angora goat

e)

Llama

32.

Wool- yielding animals bear ____ on their body.

a)

Clothes

b)

Jeans

c)

Rope

d)

Hair

e)

Feathers

33.

Hairy skin of sheep has ___ types of fibres.

a)

3

b)

2

c)

5

d)

6

e)

1

34.

Fabrics are made from fibres obtained from (fabrics un fibres se bnti Hein Jo milte hei-)

a)

Only natural source

b)

Only artificial source

c)

Natural or artificial source

d)

Only man- made source

e)

Can not say

35.

Which of the following in natural Fibre? (Inme se konsa natural fibre hei?)

a)

Rayon

b)

Nylon

c)

Silk

d)

Polyester

e)

Acrylic

36.

Polyester is a natural fibre.

a)

true

b)

false

37.

What is the difference between a fibre and a fabric?

a)

fibre is a collection of many fabrics

b)

fabric is a collection of many fibres

c)

fibre is hard and fabric soft

d)

all of these

38.

Which among the following are synthetic fibres?

a)

Nylon

b)

Polyester

c)

Rayon

d)

Spandex

e)

All of the above are synthetic fibres.

39.

Match the following

a)

Natural Materials

1.

Materials that are only found in nature.

b)

Synthetic Materials

2.

Materials that are created by humans.

c)

3.

Natural Material Image

d)

4.

Synthetic Material Image

40.

A natural material is ​ (a)   while a synthetic material is ​ (b)  

Choose from the below words
produced by the earth
produced by man.
41.

The ​ (a)   the borax solution the less cross-linking. Which gave the slime ​​ (b)  

Choose from the below words
lower
more flow.
higher
less flow.
42.

Choose the material you can stretch.

a)
b)
c)
d)
43.

Choose the correct option:

a)

Glass isn't transparent and rigid.

b)

Glass is bendy and soft.

c)

Paper is transparent.

d)

Glass is transparent and rigid.

44.
A common synthetic material that is found almost everywhere is ________.
a)
Coal
b)
Lumber
c)
Plastic
d)
Aerogel
45.
Synthetic materials are made by _________.
a)
aliens
b)
humans
c)
farmers
d)
nature
46.
Properties that describe how a substance reacts with other substances are called?
a)
Chemical properties
b)
Physical properties
47.
_______ is an example of a synthetic fabric.
a)
Wool
b)
Silk
c)
Cotton
d)
Nylon
48.
When two substances combine to form a new substance, a _____ has occurred.
a)
chemical reaction
b)
physical reaction
c)
mixture
d)
solution
49.
Synthetic materials are found in this food item.
a)
Gum
b)
Fruit smoothie
c)
Fresh milk
d)
Organic eggs
50.
What characteristic of cotton make it a great source of fiber for clothing?
a)
It is a polymer of keratin
b)
Stain resistant
c)
Fibers are easily woven and dyed
d)
Fibers are extremely long
51.
What is this weave pattern?
a)
Satin
b)
Basket
c)
Leno
d)
Plain
52.

The smallest unit of textile material that has a length many times greater than its diameter is a(n)

a)

Fiber

b)

Cuticle

c)

Strand

d)

Tress

53.

The most prevalent plant fiber is:

a)

Hemp

b)

Cotton

c)

Mohair

d)

Wool

54.

In the examination of fibers, the first and most important step in the examination will be:

a)

Determining whether the fiber is natural or manufactured

b)

Microscopically comparing for color and deameter using a comparison microscope

c)

Synthesizing long-chained molecules into a polymer

d)

None of the above

55.

Fibers are an excellent source of trace evidence because

a)

they are easily transferred from a victim to a suspect

b)

they are often overlooked by a suspect

c)

they can be easily collected and stored

d)

all of these choices

56.

Natural fibers can be harvested from

a)

plants and animals

b)

only from plants

c)

only from animals

d)

None of these

57.

All of the following are characteristics of a synthetic fiber except

a)

they are formed by combining monomer compounds into polymer molecules

b)

they are man-made

c)

they are used in the production of carpet fibers

d)

they do not contain any natural fibers

58.

A characteristic of natural fibers is that they

a)

are stronger than synthetic fibers

b)

will not break down when exposed to bright light

c)

melt at a lower temperature that synthetic fibers

d)

are affected by microscopic organisms

59.

Which of the following observations are used to help identify a specific fiber?

a)

smell of the burned fiber

b)

on contact with flame, does the fiber coil or melt?

c)

color and structure of the residue left after the fiber burns

d)

all of these choices

60.
synthetic fiber
a)
a fiber made from a man-made substance such as plastic
b)
the smallest indivisible unit of textile, it must be at 100 times longer than wide
c)
things like clothing, carpets, and upholstery
d)
fibers that have been spun together
61.
textiles
a)
things like clothing, carpets, and upholstery
b)
the passing of evidence, such as fiber, from victim to suspect or vice versa
c)
fibers that have been spun together
d)
The transfer of evidence such as a fiber from a source (such as a carpet) to a person (suspect), and then to another person (victim)
62.
yarn
a)
fibers that have been spun together
b)
the passing of evidence, such as fiber, from victim to suspect or vice versa
c)
a collection of mineral crystals formed into recognizable pattern
d)
originated with petroleum products and are non cellulose-based fibers
63.
The smallest indivisible unit of a textile is a...
a)
Fiber
b)
Fabric
c)
Yarn
d)
Thread
64.

Fibers are considered what kind of evidence? 

a)
Individual
b)
Class
c)
Direct
d)
Indirect
65.
Natural fibers can be harvested from
a)
plants and animals only
b)
plants, animals and minerals only
c)
animals only
d)
plants only
66.
The name for man-made fibers is:
a)
processed fibers
b)
synthetic fibers
c)
natural fibers
d)
modified fibers
67.
What are the 2 types of Fibers?
a)
Yarn and textiles
b)
natural and synthetic 
c)
sheep and wool
d)
carpet and clothing 
68.

Which of the following fabrics is NOT made up of plant material?

a)

bamboo

b)

hemp

c)

silk

d)

cotton

69.

Which of the following is not a synthetic material?

a)

Nylon

b)

Wool

c)

Polyester

d)

Acrylic

70.

What occurs to natural fibers like plant and animal material during a burn test?

a)

They melt into a solid substance

b)

They produce ash

c)

They do not ignite

d)

The produce a red residue

71.

Which of the following observations are used to help identify a specific fiber?

a)

smell of the burned fiber

b)

on contact with the flame, does the fiber ignite or melt?

c)

color and structure of the residue left after the riber burns

d)

all of the above

72.

Fibers are an excellent source of trace evidence because

a)

They are easily transferred from victim to suspect.

b)

They are often overlooked by a suspect.

c)

They can be easily collected and stored.

d)

All of the above.

73.

What is Loccard's Exchange Principle?

a)

Perpetrators always leave evidence behind.

b)

Every contact leaves a trace.

c)

All touches leave evidence.

d)

Long, violent confrontations leave evidence.

74.

A horizontal/lengthwise yarn or thread in a weave

a)
polymer
b)
warp
c)
weft
d)
yarn
75.
All of the following are characteristics of synthetic fibers except:
a)
They are formed by combining monomer compounds into polymer molecules
b)
They’re manufactured
c)
Used in production of carpet fibers
d)
Produced by plants, animals, or other organisms
76.

Which of the following is NOT a natural fiber?

a)

Silk

b)

Bamboo

c)

Wool

d)

Nylon

77.

Which of the following is a manufactured fiber?

a)

Acetate

b)

Coir

c)

Linen

d)

Cotton

78.

the passing of evidence, such as fiber, from victim to suspect or vice versa.

a)

polymer

b)

monomer

c)

secondary transfer

d)

direct transfer

79.

the transfer of evidence such as a fiber from a source to a person, and then to another person.

a)

primary evidence

b)

secondary evidence

c)

primary transfer

d)

secondary transfer

80.

a flexible, flat material made by interlacing fibers.

a)

yarn

b)

textile

c)

filaments

d)

fibers

81.

Which of the following are ways to collect fiber evidence?

a)

vacuuming

b)

adhesive tape

c)

dusting

d)

forceps

e)

burning

82.

Check all descriptions appropriate for: Cotton

a)

Synthetic

b)

Natural

c)

Plant

d)

Animal

e)

Mineral

83.

Check all descriptions appropriate for: Polyester

a)

Synthetic

b)

Natural

c)

Plant

d)

Animal

e)

Mineral

84.

Fiber can be considered ​ (a)   evidence because they​ narrow down the suspects to a group but not a single person.

Choose from the below words
Class
Individual
Biological
Physical
Trace
Circumstantial
Direct
85.

Fiber can be considered ​​ (a)   ​ evidence when they are man-made or synthetic.

Choose from the below words
Physical
Individual
Trace
Circumstantial
Direct
Class
Biological
86.

Fiber can be considered ​​ (a)   ​ evidence because they are often just tiny things that are left behind after direct or secondary transfer.

Choose from the below words
Trace
Individual
Circumstantial
Direct
Class
Biological
Physical
87.

Fibers will always be considered ​ ​ (a)   evidence and not​ (b)   evidence because they only imply facts without directly proving or witnessing the crime.

Choose from the below words
Circumstantial
Direct
Individual
Class
Biological
Physical
88.

Match the following weaves to the correct pattern that shows them.

a)
1.

Plain

b)
2.

Twill

c)
3.

Basket

89.

Two methods that can analyze fibers without damaging them are:

a)

polarizing light microscopy and infrared spectroscopy.

b)

polarizing light spectroscopy and infrared microscopy.

c)

heat and light.

d)

None of these choices.

90.

Fiberglass is a fiber form of:

a)

proteins.

b)

cellulose.

c)

mineral.

d)

polymers.

91.

The number of threads that are packed together for any given amount of fabric is known as ___________.

a)

abaca

b)

linen

c)

thread count

d)

satin

e)

tabby

92.

This weave pictured is

a)

Satin

b)

Plain

c)

Twill

93.

When fibers are transferred directly from victim to suspect or suspect to victim, this is called:

a)

necessary transfer.

b)

absolute transfer.

c)

direct transfer.

d)

None of these choices.

94.

The transfer of evidence such as a fiber from a source to a person, then to another person, is called:

a)

primary transfer.

b)

secondary transfer.

c)

tertiary transfer.

d)

direct transfer.

95.

Fiber evidence is gathered with:

a)

vacuums.

b)

tape.

c)

glue.

d)

forceps.

e)

lint roller.

96.

Fibers are classified as either:

a)

natural fibers or synthetic fibers.

b)

polymers or synthetic fibers.

c)

acrylic fibers or plant fibers.

d)

olefins or synthetic fibers.

97.

Natural fibers come from:

a)

animals.

b)

plants.

c)

minerals that are mined from the ground.

d)

All of these choices.

98.

The simplest weave pattern is the plain, or ____________, weave.

a)

abaca

b)

linen

c)

thread count

d)

satin

e)

tabby

99.

The number of threads that are packed together for any given amount of fabric is known as ___________.

a)

abaca

b)

linen

c)

thread count

d)

satin

e)

tabby

100.

Cotton is

a)

A synthetic fiber

b)

A natural fiber

c)

An artificial fiber

101.

Rayon is

a)

A synthetic fiber

b)

A natural fiber

c)

An artificial fiber

102.

Nylon is

a)

A synthetic fiber

b)

A natural fiber

c)

An artificial fiber

103.

Hemp is

a)

A synthetic fiber

b)

A natural fiber

c)

An artificial fiber

104.

Silk is

a)

A synthetic fiber

b)

A natural fiber

c)

An artificial fiber

105.

Acrylic is

a)

A synthetic fiber

b)

A natural fiber

c)

An artificial fiber

106.

Wool is

a)

A synthetic fiber

b)

A natural fiber

c)

An artificial fiber

107.

Jute is

a)

A synthetic fiber

b)

A natural fiber

c)

An artificial fiber

108.

Polyester is

a)

A synthetic fiber

b)

A natural fiber

c)

An artificial fiber

109.

This type of fiber is found in plants or animals.

a)

Natural

b)

Artificial

c)

Synthetic

110.

This type of fiber is made primarily from plastics.

a)

Natural

b)

Artificial

c)

Synthetic

111.

A forensic scientist performs a burn test and finds that the fiber melts when it is put in the flame. This suggests that the fiber is…

a)

A synthetic fiber

b)

A natural fiber

112.

This weave pictured is

a)

Satin

b)

Plain

c)

Twill

113.

This weave pictured is

a)

Satin

b)

Plain

c)

Twill

114.

A blue fiber found at the crime scene is…

a)

Direct Evidence

b)

Class Evidence

c)

Testimonial Evidence

d)

Individual Evidence

115.

A blue polyester fiber found at the crime scene matches the outfit the suspect was wearing at the time they allegedly committed the crime. What type of evidence is this?

a)

Individual Evidence

b)

Direct Evidence

c)

Testimonial Evidence

d)

Circumstantial Evidence

116.

A cross transfer of evidence between a suspect and victim

a)

Chain of Custody

b)

District Attorney

c)

Locard Exchange principle

117.

In a classroom activity about hair structure, Oliver compares a strand of hair to a pencil. He explains that just like a pencil has paint on its surface, a certain part of the hair serves a similar protective function. Which part of the hair is comparable to the pencil's paint?

a)

Follicle

b)

Cortex

c)

Cuticle

d)

Medulla

118.

In a classroom activity about hair structure, Liam compares a strand of hair to a pencil. Which part of the hair does Liam say corresponds to the wood of the pencil?

a)

Follicle

b)

Cortex

c)

Cuticle

d)

Medulla

119.

In a classroom discussion about human hair structure, Jackson compares the hair to a pencil. He asks Rohan, which structure corresponds to the lead of the pencil?

a)

Follicle

b)

Cortex

c)

Cuticle

d)

Medulla

120.

During a biology class, Ethan observed a slide under the microscope showing a medulla pattern in a hair sample. He described the pattern as being not solid but having breaks at regular intervals. How is this medulla pattern called?

a)

fragmented 

b)

continuous

c)

interrupted

121.

Abigail, Avery, and Noah are investigating a crime scene for their school project. They come across some trace evidence. What does this term 'trace evidence' mean in their context?

a)

small but measurable amounts of physical or biological material found at crime scene

b)

the tough outer covering of a hair composed of overlapping scales

c)

the centrel core of a hair fiber

d)

the actively growing root or base of hair containing DNA and living cells

122.

During a forensic science class, Liam examines a hair sample under the microscope. He asks Maya, 'What kind of medulla is this?'

a)

Fragmented

b)

Continuous

c)

Interrupted/Intermittent

d)

There is no medulla - Absent

123.

Jackson is examining a hair sample under the microscope in his biology class. He turns to Abigail and asks, 'What kind of medulla is this?'

a)

Fragmented

b)

Continuous

c)

Interrupted/Intermittent

d)

There is no medulla - Absent

124.

During a forensic science class, Kai examines a hair sample under the microscope and asks Priya, 'What kind of medulla is this?'

a)

Fragmented

b)

Continuous

c)

Interrupted/Intermittent

d)

There is no medulla - Absent

125.

During a forensic science class, Arjun stated that hair always contains DNA. Is this statement true?

a)

true

b)

false

126.

James found a strand of hair in his science lab. Should he categorize it as human or nonhuman hair?

a)

human 

b)

nonhuman

127.

Arjun found a strand of hair on his desk and he is trying to identify its source. The picture he took shows a __________ hair.

a)

human

b)

animal

128.

Scarlett found a strand of hair on her sweater. She is not sure if it's her hair or her pet dog's. What kind of hair could it be?

a)

Human

b)

Animal

129.

During a forensic science class, Nora, Benjamin, and William learned that nDNA can be extracted from a hair sample. Which part(s) of a hair can be analyzed for nDNA?

a)

root

b)

cuticle

c)

medulla

d)

cortex

130.

Ava is studying forensic science and is examining a hair sample under the microscope. She notes the medulla pattern of the hair. Which pattern is she most likely observing?

a)

Continuous

b)

Fragmented/Interrupted

c)

Absent

131.

During a school science fair, Priya presented a sample of hair under a microscope. Kai asked, 'Is this hair from an animal or a human?'

a)

Animal

b)

Human

132.

Oliver found a strand of hair in his science lab. He is unsure if it's from an animal or from his classmates, Abigail or Mia. Can you help him identify if the hair is animal or human?

a)

Animal

b)

Human

133.

Grace is studying biology and she came across the term 'hair follicle'. She asked Jackson and Aria about it. Jackson gave her four explanations. Which one is correct?

a)

the actively growing root or base of hair containing DNA and living cells

b)

material that connects an individual or thing to a certain group

c)

a type of fibrous protein that makes up the majority of the cortex of a hair

d)

the tough outer covering of a hair composed of overlapping scales

134.

During a science class, Abigail states that DNA can be found on the root of a hair. Ava disagrees, saying DNA is never present on hair. Who is correct?

a)

Abigail is correct; DNA can be found on the root of a hair.

b)

Ava is correct; DNA is never present on hair.

135.

During a forensic science class, Michael wonders if it's possible to determine what body part hair evidence came from. Can the lab technician confirm the body part origin of the hair?

a)

yes

b)

no

136.

Ethan, Harper, and Aiden are having a debate. Ethan believes that race origin can be determined by hair. Is he correct?

a)

Yes

b)

No

137.

During a biology class, Evelyn was asked about the composition of the hair shaft. What important protein did she mention?

a)

Cellulose 

b)

Chitin

c)

Peptidoglycan

d)

Keratin

138.

During a science fair, Abigail, Zoe, and Olivia presented a forensic science project. They explained that when evidence can only be associated with a group and never with a single source, that evidence is said to possess:

a)

Class categories

b)

Class characteristics

c)

Group categories

d)

Group characteristics

139.

During a forensic science class, Daniel examines a strand of hair under the microscope. He notices a distinctive scale pattern that identifies it as human hair. Which scale pattern is he observing?

a)

Imbricate

b)

Coronal

c)

Spinous

d)

None of these

140.

Emma is studying different scale patterns in her biology class. Which scale pattern is indicated by the sample she's observing?

a)

Coronal

b)

Spinous

c)

Imbricate

d)

None of these

141.

During a biology class, James learned about the hair growth cycle. He discovered that there is a transitional or regressive stage that lasts a few weeks during which hair growth slows. What is this stage called?

a)

Anagen

b)

Telogen

c)

Catagen

d)

Metagen

142.

Hannah, Isla, and Samuel were studying about the hair life cycle in their biology class. They learned that the hair follicle is dormant and hairs are easily lost during which stage of the hair life cycle?

a)

Anagen

b)

Telogen

c)

Catagen

d)

Metagen

143.

During a forensic science class, Jackson, Lily, and Priya are examining hair samples under a microscope. They conclude that a hair is from a human if...

a)

The medullary index is 0.5 or greater           

b)

The medullary index is 0.33 or less

c)

The cuticle is coronal

d)

The medulla is fragmented

144.

During a biology class, Arjun observed a slide under the microscope showing a medulla pattern in a hair sample. He described the pattern as being consistent along the length of the hair. How is this medulla pattern called?

a)

fragmented 

b)

continuous

c)

interrupted

145.

Lily, Kai, and Rohan are studying for their biology exam. They come across a question about the structure of hair. They are asked to identify the 'cortex'. What could be the correct definition?

a)

the region of hair located outside of the medulla containing granules of pigments

b)

material that connects an individual or thing to a certain group

c)

a type of fibrous protein that makes up the majority of the cortex of a hair

d)

the tough outer covering of a hair composed of overlapping scales

146.

During a biology class, Daniel learned that the cuticle is a part of the hair structure. What is the cuticle?

a)

the tough outer covering of a hair composed of overlapping scales

b)

material that connects an individual or thing to a certain group

c)

a type of fibrous protein that makes up the majority of the cortex of a hair

d)

the central core of a hair fiber

147.

During a school science fair, Ava, Oliver, and Rohan are presenting a project on forensic science. They explain 'trace evidence' to the audience. What is 'trace evidence'?

a)

small but measurable amounts of physical or biological material found at a crime scene

b)

the tough outer covering of a hair composed of overlapping scales

c)

the central core of a hair fiber

d)

the actively growing root or base of hair containing DNA and living cells

148.

Kai, Daniel, and Samuel are studying the structure of hair for their biology project. They are trying to identify the oldest part of the hair. According to their research, which part is the oldest?

a)

Middle

b)

Tip

c)

Root

d)

Shaft

149.

During a biology class, Abigail examines a hair sample under the microscope. She asks Aiden, 'What kind of medulla is this?'

a)

Fragmented

b)

Continuous

c)

Interrupted/Intermittent

d)

There is no medulla - Absent

150.

During a science class, Michael learns that hair always contains DNA. Is this statement true?

a)

true

b)

false

151.

Aria, Maya, and Emma are studying the hair patterns of small rodents and dogs for their biology project. They noticed a crown-like scales pattern. Which pattern is this?

a)

Coronal Pattern

b)

Spinous Pattern

c)

Imbricate Pattern

152.

During a biology class, Charlotte examines a model of the hair and points out that the hair shaft is

a)

the part of the hair enclosed in the hair follicle

b)

the structure containing capillaries and nerves that supply nutrients to the hair

c)

"Bag" that encloses the root of the hair

d)

the part of the hair that is visible on the scalp or skin.

153.

Anika, Michael, and Elijah are studying different types of hair for their biology project. They are particularly interested in Asian hair. Which characteristic would they most likely observe in Asian hair?

a)

Dark Medulla

b)

Sparsely distributed pigment granules

c)

flattened cross-section

d)

Hair is curly

154.

Luna, Charlotte, and Scarlett are studying for their biology exam. They come across a question in their textbook that asks, 'What type of cuticle does human hair have?'

a)

Imbricate

b)

Spinous

c)

Coronal

d)

Pigmented

155.

During a forensic science class, Benjamin, Noah, and Nora were learning about hair analysis. The instructor asked, 'Which part of the hair can be used as individual evidence?'

a)

Follicle

b)

Cuticle

c)

Medulla

d)

Cortex

156.

During a biology class, Scarlett learned that the period of the most active hair growth is called the ____________ stage. Harper and William were curious to know which stage that was.

a)

catagen

b)

telogen

c)

anagen

d)

imagen

157.

In which direction do the scales of the cuticle point?

a)

to the root

b)

to the medulla

c)

to the tip of the hair

d)

to the follicle

158.

Which of the following is not a function of hair in mammals?

a)

Help control body temperature

b)

Decrease friction from outside forces

c)

Act as a sensory organ

d)

Absorb body odor when stressed

159.

What is the repeated pattern of rounded pigments in animal hair?

a)

Ovoid Bodies

b)

Cortex Pigments

c)

Colored Spots

d)

Pigment Spheres

160.

How many centimeters does hair grow in a day

a)

1.3 cm

b)

0.5 cm

c)

2 cm

d)

0.044 cm

161.

Part A is the​ (a)  

Choose from the below words
Hair Shaft
Hair Erector muscle
Sebaceous gland
papilla
medulla
cortex
cuticle
hair follicle
162.

Part B is the​ (a)  

Choose from the below words
Sebaceous Gland
Hair Erector muscle
Hair Shaft
papilla
medulla
cortex
cuticle
hair follicle
163.

Part C is the​ (a)  

Choose from the below words
Hair Erector Muscle
Sebaceous Gland
Hair Shaft
papilla
medulla
cortex
cuticle
hair follicle
164.

Part D is the​ (a)  

Choose from the below words
Hair Follicle
Sebaceous Gland
Hair Shaft
papilla
medulla
cortex
cuticle
Hair Erector Muscle
165.

Part E is the​ (a)  

Choose from the below words
Papilla
Sebaceous Gland
Hair Shaft
Hair Follicle
medulla
cortex
cuticle
Hair Erector Muscle
166.

Part F is the​ (a)  

Choose from the below words
Medulla
Sebaceous Gland
Hair Shaft
Hair Follicle
Papilla
cortex
cuticle
Hair Erector Muscle
167.

Part G is the​ (a)  

Choose from the below words
Cortex
Sebaceous Gland
Hair Shaft
Hair Follicle
Papilla
Medulla
cuticle
Hair Erector Muscle
168.

Part H is the​ (a)  

Choose from the below words
Cuticle
Sebaceous Gland
Hair Shaft
Hair Follicle
Papilla
Medulla
Cortex
Hair Erector Muscle
169.

fibers composed of a loose arrangement of polymers that are soft, elastic, and absorbing.

a)

yarn

b)

crystalline

c)

amorphous

d)

polymer

170.

fibers composed of polymers packed side by side, which make it stiff and strong.

a)

natural fiber

b)

crystalline

c)

yarn

d)

synthetic fiber

171.

the passing of evidence, such as fiber, from victim to suspect or vice versa.

a)

polymer

b)

monomer

c)

secondary transfer

d)

direct transfer

172.

a fiber produced naturally and harvested from animal, plant, or mineral sources.

a)

natural fiber

b)

synthetic fiber

c)

mineral fiber

d)

yarn

173.

Aria, Charlotte, and Kai are working on a school project about different types of fibers. They come across a fiber made from a man-made substance such as plastic. What type of fiber is this?

a)

yarn

b)

mineral fiber

c)

natural fiber

d)

synthetic fiber

174.

the transfer of evidence such as a fiber from a source to a person, and then to another person.

a)

primary evidence

b)

secondary evidence

c)

primary transfer

d)

secondary transfer

175.

When fibers are transferred directly from victim to suspect or suspect to victim, this is called:

a)

necessary transfer.

b)

absolute transfer.

c)

direct transfer.

d)

None of these choices.

176.

The transfer of evidence such as a fiber from a source to a person, then to another person, is called:

a)

primary transfer.

b)

secondary transfer.

c)

tertiary transfer.

d)

direct transfer.

177.

Fiber evidence is gathered with:

a)

vacuums.

b)

tape.

c)

glue.

d)

forceps.

e)

lint roller.

178.

Fibers are classified as either:

a)

natural fibers or synthetic fibers.

b)

polymers or synthetic fibers.

c)

acrylic fibers or plant fibers.

d)

olefins or synthetic fibers.

179.

Natural fibers come from:

a)

animals.

b)

plants.

c)

minerals that are mined from the ground.

d)

All of these choices.

180.

Cotton is

a)

A synthetic fiber

b)

A natural fiber

c)

An artificial fiber

181.

Rayon is

a)

A synthetic fiber

b)

A natural fiber

c)

A manufactured

182.

Nylon is

a)

A synthetic fiber

b)

A natural fiber

c)

A manufactured fiber

183.

Hemp is

a)

A synthetic fiber

b)

A natural fiber

c)

An artificial fiber

184.

Silk is

a)

A synthetic fiber

b)

A natural fiber

c)

An artificial fiber

185.

Acrylic is

a)

A synthetic fiber

b)

A natural fiber

c)

An artificial fiber

186.

Wool is

a)

A synthetic fiber

b)

A natural fiber

c)

An artificial fiber

187.

Polyester is

a)

A synthetic fiber

b)

A natural fiber

c)

An artificial fiber

188.

This type of fiber is found in plants or animals.

a)

Natural

b)

Artificial

c)

Synthetic

189.

This type of fiber is made primarily from plastics.

a)

Natural

b)

Artificial

c)

Synthetic

190.

A forensic scientist performs a burn test and finds that the fiber melts when it is put in the flame. This suggests that the fiber is…

a)

A synthetic fiber

b)

A natural fiber

191.

A blue fiber found at the crime scene is…

a)

Direct Evidence

b)

Class Evidence

c)

Testimonial Evidence

d)

Individual Evidence

192.

A blue polyester fiber found at the crime scene matches the outfit the suspect was wearing at the time they allegedly committed the crime. What type of evidence is this?

a)

Individual Evidence

b)

Direct Evidence

c)

Testimonial Evidence

d)

Circumstantial Evidence

193.

Evelyn found a strand of hair at the crime scene. She believes it could be a cross transfer of evidence between Ethan, the suspect, and Harper, the victim. What principle is she referring to?

a)

Principle of Individuality

b)

Principle of Linkage

c)

Locard Exchange principle

194.
The name for man-made fibers is:
a)
processed fibers
b)
synthetic fibers
c)
natural fibers
d)
modified fibers
195.
When fibers are transferred directly from victim to suspect or suspect to victim, this is called:
a)
necessary transfer.
b)
direct transfer
c)
absolute transfer.
d)
None of these choices.
196.
Fibers are classified as either:
a)
natural fibers or synthetic fibers.
b)
polymers or synthetic fibers.
c)
acrylic fibers or plant fibers.
d)
olefins or synthetic fibers
197.
Natural fibers come from:
a)
animals.
b)
plants.
c)
minerals that are mined from the ground.
d)
All of these choices.
198.

a collection of mineral crystals formed into a recognizable pattern.

a)

synthetic fiber

b)

polymer

c)

mineral fiber

d)

monomer

199.

a fiber produced naturally and harvested from animal, plant, or mineral sources.

a)

natural fiber

b)

synthetic fiber

c)

mineral fiber

d)

yarn

200.

a fiber made from a man-made substance such as plastic.

a)

yarn

b)

mineral fiber

c)

natural fiber

d)

synthetic fiber

201.
A fiber made from goat hair is called...
a)
Cashmere
b)
Sisal
c)
Coir
d)
Angora
202.
A fiber made from rabbit hair is called...
a)
Cashmere
b)
Sisal
c)
Silk
d)
Angora
203.
A fiber with extreme elastic properties is...
a)
Rayon
b)
Spandex
c)
Polyester
d)
Acrylic
204.
Scientists use this test to analyze the dyes in fabric evidence:
a)
Stain test
b)
Solvent test
c)
Infrared Spectroscopy
d)
Chromatography
205.
Plant fibers are made of what material?
a)
Carbohydrate
b)
Protein
c)
Nucleic Acid
d)
Lipid
206.
In a burn test, these fibers will often shrink back away from the flame.
a)
Synthetic
b)
Natural
207.
Fibers are considered what kind of evidence? 
a)
Individual
b)
Class
c)
Direct
d)
Indirect
208.
Which of the following are NOT considered mineral fibers?
a)
Rayon
b)
Fiberglass
c)
All of the above are mineral fibers
d)
Asbestos
209.

Fibers can be specific to a single person.

a)

True

b)

False

210.

What time period should fibers be collected within after the crime?

a)

1 hour

b)

10 hours

c)

24 hours

d)

1 week

211.

Fiber evidence is collected using all of the following except

a)

broom

b)

vacuum

c)

sticky lint roller

d)

forceps

212.

Synthetic fibers come from animals, plants, and minerals.

a)

True

b)

False

213.

Which fibers are most commonly found at crime scenes?

a)

Animal fibers

b)

Plant fibers

c)

Minerals fibers

214.

All animal fibers are made of

a)

Cellulose

b)

Proteins

c)

Hemp

215.

Plant fibers are made of

a)

Cellulose

b)

Protein

c)

Keratin

216.

All of the following are plant fibers except

a)

Cotton

b)

Hemp

c)

Raylon

d)

Manila

217.

Synthetic fibers are stronger than natural fibers.

a)

True

b)

False

218.

This type of fiber can deteriorate in bright sunlight and will melt at low temperatures.

a)

Synthetic

b)

Natural

219.

Fiber identification provides both class and individual evidence.

a)

True

b)

False

220.

Which of the following are ways to collect fiber evidence?

a)

vacuuming

b)

adhesive tape

c)

dusting

d)

forceps

e)

burning