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8th TEST FALL 22

Total questions: 65

Worksheet time: 49mins

Name
Class
Date
1.

How may a gene be defined?

a)

a part of the cell membrane

b)

a segment of a protein

c)

a segment of DNA

d)

a complete protein

2.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
3.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
4.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
5.
When a starfish grows a new body off a broken arm, what kind of reproduction is this?
a)
Sexual
b)
Differentiation
c)
Asexual 
d)
Specialization
6.
Where does an off spring get its traits in asexual reproduction?
a)
From both parents
b)
From only one parent
c)
From neither parent
d)
There are no traits handed down
7.
Sexual reproduction requires _____ parents and asexual reproduction requires ___ parents
a)
1,1
b)
2,2
c)
2,1
d)
1,2 
8.
What is an advantage of sexual reproduction?
a)
Allows genetic variation
b)
Only needs one parent
c)
Happens very quickly
d)
Offspring are exact copies of parent
9.

All of the offspring of an organism have the same genetic material, which is identical to the parent organism. From this, we can conclude that this organism -

a)

makes its own food

b)

is unicellular

c)

live in a marine habitat

d)

reproduces asexually

10.

Which of the following are reasons that cells divide? select all that apply

a)

reproduction

b)

prevent disease

c)

conserve ATP

d)

growth & repair

11.
Heterozygous is when...
a)
the alleles are the same
b)
the alleles are different
c)
the alleles are absent
d)
the alleles are present
12.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
13.

Which statement is true?

a)

Your DNA is identical to your siblings.

b)

Your DNA is identical to your father's.

c)

Your DNA is identical to your mother's.

d)

Your DNA is unique to you.

14.

How many chromosomes do humans have?

a)

46

b)

23

c)

96

d)

21

e)

43

15.
The dominant trait is
a)
yellow pea seeds
b)
green pea seeds
c)
there is no dominant seed
d)
Jolly green giant
16.
What are the four nitrogen bases?
a)
adenine, thymine, guanine, cytosine
b)
adenine, lysine, prolene, guanine
c)
arganine, cytosine, lysine, purine
d)
lysine, cytosine, lucine, guanine
17.

How many nitrogen bases does DNA have?

a)

1

b)

2

c)

3

d)

4

18.

If two alleles are the same for a certain trait they are considered

a)

Homozygous

b)

Twins

c)

Heterozygous

d)

Common

19.

carries amino acids to the ribosome during protein synthesis

a)

DNA

b)

sequence

c)

protein synthesis

d)

messenger RNA

e)

transfer RNA

20.
The traits of an organism are passed to its offspring on small coded strands of DNA material called
a)
meiosis
b)
recessive traits
c)
genes
d)
heredity
21.

If "B" represents brown hair, and "b" represents blond hair, what will the genotype be for a homozygous brown haired person?

a)

BB

b)

Bb

c)

bb

22.

What is the missing pairing?

a)

AA

b)

Aa

c)

aa

23.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
24.

What word describes a trait that helps an organism survive in its environment?

a)

natural selection

b)

mutation

c)

camouflage

d)

adaptation

25.

How do you "win" at natural selection?

a)

survive

b)

go extinct

c)

survive & reproduce

26.

Variations are caused by . . .

a)

Kaleidoscopes

b)

Variety Shows

c)

Mutations

d)

A change in phenotypic expression

27.

Which of the following is NOT an adaptation?

a)

Quills

b)

Speed

c)

Camouflage

d)

Fish

28.

Which animal is the most FIT to live in the desert?

a)

Penguin

b)

Bear

c)

Tiger

d)

Lizard

29.

TRUE OR FALSE: All mutations are bad

a)

TRUE

b)

FALSE

30.

What does 'fitness' mean in natural selection?

a)

How fast an animal can run

b)

How much you work out

c)

How well adapted the animal is to their environment

d)

How strong an animal is

31.
The structures shown are_________
a)
homologous
b)
heterologous
c)
analogous
d)
vestigial
32.
The diagram shows fossils in different rock layers. Which of these statements about the age of these fossils is most likely correct?
a)
Fossil A and C are the same age
b)
Fossil B is older than fossil C
c)
Fossils A is older than fossil B
d)
Fossil D is older than fossil C
33.
Where do mutations occur?
a)
DNA and RNA
b)
DNA 
c)
RNA
d)
mRNA and tRNA
34.
Evolution works by 
a)
individuals changing to suit their environment
b)
Individuals learned new traits and pass them on
c)
sudden change in the environment cause a species change 
d)
small changes pass down through many generations
35.

What is a trait?

a)

a color

b)

the quality or characteristic of an organism

c)

the DNA of an organism

d)

when mutatuons cause extra limbs.

36.

What will the net force on the soccer ball be?

a)

50 N to the left

b)

50 N to the right

c)

200 N to the left

d)

200 N to the right

37.

A force that opposes motion is

a)

friction

b)

inertia

c)

acceleration

d)

momentum

38.

What do we called it when soemthing is pushed or pulled?

a)

a Force

b)

movement

c)

density

d)

Speed

39.
Which is true from Newton's Third law of motion?
a)
For every action force there is a smaller reaction force in the opposite direction.
b)
For every action force there is an equivalent reaction force in the opposite direction.
c)
 Both 1 and 2
d)
None of the above
40.
What is Newtons 2nd law?
a)
equal&opposite force
b)
law inertia
c)
f=ma
41.

The formula ...

? = mass x acceleration


Is used to find which of the following:

a)

Force

b)

Velocity

c)

Momentum

d)

Gravity

42.

The formula ...

? = Distance / Time


is used to find which of the following?

a)

Velocity

b)

Force

c)

Momentum

d)

Speed

43.
What is the net force
a)
10 N
b)
0 N
c)
25 N
d)
1 N
44.

Which one of Newton's laws are displayed

a)

2nd law

b)

1st law

c)

3rd law

45.
The momentum of an object depends upon the object's ___________&_____________.  
a)
size and shape
b)
mass and speed
c)
mass and veloctiy
d)
mass and energy
46.

The area of force that surrounds a magnet.

a)

Magnetic field

b)

Celt magnified

c)

Magnetic force

d)

Force magnetic

47.

Pair the definition with the correct term.

This word means to allow electricity to flow through easily.

a)

Insulator

b)

Resistor

c)

Current

d)

Conductor

48.

Pair the definition with the correct term.

This word means to NOT allow electricity to flow through easily.

a)

Insulator

b)

Resistor

c)

Current

d)

Conductor

49.

What kind of circuit is this picture an example of?

a)

Parallel Circuit

b)

Series Circuit

c)

X-circuit

d)

y-circuit

50.

What kind of circuit is this picture an example of?

a)

Parallel Circuit

b)

Series Circuit

c)

X-circuit

d)

y-circuit

51.

What kind of battery is shown in the picture?

a)

Wet cell

b)

Dry cell

c)

XY cell

d)

electromagnetic cell

52.

What kind of battery is shown in the picture?

a)

Wet cell

b)

Dry cell

c)

XY cell

d)

Electromagnetic

53.

The rate of electron flow in a circuit

a)

Voltage

b)

Resistance

c)

Current

54.

The highest point of a wave is called the ________.

a)

Wavelength

b)

Crest

c)

Trough

d)

Frequency

55.

The lowest part of a wave is called the ________.

a)

Wavelength

b)

Crest

c)

Trough

d)

Frequency

56.

The height of the wave from the resting point to the crest or the resting point to the trough is called the ________.

a)

Wavelength

b)

Amplitude

c)

Frequency

d)

Period

57.

Waves transfer ______, not ________.

a)

Energy, Matter

b)

Matter, Energy

58.

Sound can travel through empty space.

a)

True

b)

False

59.

Light can travel through empty space.

a)

True

b)

False

60.

Which letter represents wavelength?

a)

A

b)

B

c)

C

d)

D

61.

Which letter represents the trough?

a)

A

b)

B

c)

C

d)

D

62.

A wave that can travel without a medium is called an ___________.

a)

Mechanical Wave

b)

Electromagnetic Wave

63.

What kind of wave is pictured below?

a)

compressional wave

b)

transverse wave

c)

sound wave

d)

mechanical wave

64.
Which wave is pictured?
a)
Transverse
b)
Longitudinal
c)
Both
d)
Neither
65.
What type of wave is this?
a)
Longitudinal
b)
Transverse

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