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Science Practice Quiz

Total questions: 182

Worksheet time: 2hrs 56mins

Name
Class
Date
1.

What contains all of the material necessary for life?

a)

ATP

b)

Cells

c)

Metabolism

d)

Protein

2.

Characteristics that are passed down from parents to offspring is known as what?

a)

Heredity

b)

Homeostasis

c)

ATP

d)

Metabolism

3.

What is the name for the rate that organisms use energy?

a)

Stimulus

b)

ATP

c)

Phospholipids

d)

Metabolism

4.

What is the name of the energy carrying molecule?

a)

ATP

b)

Metabolism

c)

Producer

d)

Stimulus

5.

What makes up the cell membrane?

a)

Cells

b)

Phospholipids

c)

ATP

d)

Carbohydrates

6.

A type of nucleic acid is:

a)

carbohydrates

b)

ATP

c)

DNA

d)

Lipids

7.

Organisms store energy in:

a)

Water

b)

Nucleic Acid

c)

Salt

d)

Lipids (fats)

8.

A change in an organism's environment that causes the organism to respond is a(n):

a)

Producer

b)

Stimulus

c)

Response

d)

Metabolism

9.

A fat that does not dissolve in water.

a)

Lipid

b)

Protein

c)

Consumer

d)

Carbohydrate

10.

An organism that receives its nutrients by breaking down dead organisms and waste.

a)

Lipid

b)

Consumer

c)

Protein

d)

Decomposer

11.

An organism that makes its own food.

a)

Carbohydrate

b)

Producer

c)

Consumer

d)

Decomposer

12.

Provides energy for cells.

a)

Protein

b)

Lipids

c)

Carbohydrates

d)

Consumer

13.

Helps to build and repair the body.

a)

Protein

b)

Lipid

c)

Producer

d)

Carbohydrate

14.

An organism that eats other organisms.

a)

Decomposer

b)

Producer

c)

Protein

d)

Consumer

15.

Birds build a nest and lay eggs. This is good evidence for which characteristic of life?

a)

Homeostasis

b)

Reproduction

c)

Response to stimuli

d)

Made of cells

16.

Micah looks through a microscope at a pepper. He notices that it is organized into small compartments. What Micah sees is evidence of which characteristic of life?

a)

Made of Cells

b)

Homeostasis

c)

Growth and Development

d)

Reproduction

17.

A seed grows into a plant with water and sunlight. The changes it goes through are evidence of life. Which characteristic of living things does this best

a)

Homeostasis

b)

Made of Cells

c)

Complex Chemistry

d)

Growth and Development

18.

Frogs go through a life cycle from an egg to tadpole to a grown frog. Which characteristic of life is this an example of?

a)

Growth and Development

b)

Homeostasis

c)

Reproduction

d)

Made of Cells

19.

Two cats mate and produce kittens. Which characteristic of life is this the best example of?

a)

Made of Cells

b)

Complex Chemistry

c)

Respond to Stimuli

d)

Reproduction

20.

Is the sun living or non-living?

a)

living

b)

non-living

21.

Which one of these is non-living?

a)
b)
c)
d)
22.

Which one of these is NOT a characteristic of living things?

a)

Communicate

b)

Respond to Stimulus

c)

Grow and Develop

d)

Homeostasis

23.

To make more living things of the same kind

a)

nutrient

b)

vertebrate

c)

reproduce

d)

senses

24.

An animal that crawls along the ground on short legs or its belly

a)

amphibian

b)

mammal

c)

invertebrate

d)

reptile

25.

An animal without a backbone

a)

invertebrate

b)

vertebrate

c)

reptile

d)

organism

26.

An animal that begins life in the water and later lives on land

a)

reptile

b)

amphibian

c)

mammal

d)

vertebrate

27.

An animal whose young are fed with milk from the mother

a)

mammal

b)

reptile

c)

amphibian

d)

organism

28.

Every __________ is a vertebrate

a)

organism

b)

plant

c)

amphibian

d)

living thing

29.

Small hard scales may cover the dry skin of a reptile

a)

true

b)

false

30.

A backbone for a plant comes from the earth

a)

true

b)

false

31.

Every organism needs.....

a)

air

b)

water

c)

nutrients

d)

all of the above

32.

Hair or fur cover the body of every vertebrate

a)

true

b)

false

33.

Living things require _________________________ for growth and development.

a)

Food and water

b)

Slime

c)

air

34.

Which of these reproduces?

a)

slime

b)

fire

c)

book

d)

kitten

35.

We feel cold during winter and hot during summers this is an example of ________________

a)

Living things reproduce

b)

Living things feel changes in their surroundings.

c)

Living things breathe.

36.

This animal responds to change by . . . .

a)

standing its fur

b)

hiding into its shell

c)

twisting its body

d)

curling into a ball

37.

The plant which responds to touch by closing its leaves is . . . .

a)
b)
c)
d)
38.

What does "classify" means?

a)

To place things that share properties together in tissues.

b)

To place things that share properties together in groups.

c)

To place nonliving things that share properties together in groups.

d)

To eliminate things that share properties together in groups.

39.

What Traits scientists look at when classifying living things?

a)

Body form

b)

How do they obtain food

c)

Number of cells

d)

Eye color

40.

How many kingdoms are there?

(a)  

41.

One of the following is NOT a kingdom.

a)

Virus

b)

Animals

c)

Plants

d)

Archaea

42.

Bacterias and Archaea are made up of ONE cell.

a)

True

b)

False

43.

Fungi and plants can move from a place to another.

a)

True

b)

False

44.

Yeast, Mushrooms and Moles belong to the (a)   kingdom.

45.

A place where plants and animals live and grow naturally is called a ______________.

a)

soil

b)

sky

c)

habitat

d)

land

46.

Where does this animal live?

a)

Mountain

b)

Desert

c)

Tundra

d)

Ocean

47.

A living thing is something that —

a)

moves and talks

b)

grows and changes

c)

eats and changes

d)

stays the same

48.

A way of hiding or covering something so it blends in with its environment.

a)

producer

b)

camouflage

c)

omnivore

d)

adaption

49.

True or False

A giraffe is a living thing,

a)

true

b)

false

50.

An environment that gets little rain.

a)

Rain Forest

b)

Tundra

c)

Desert

d)

Pond

51.

All living things need —

a)

Parents, soil, and air

b)

food, clothes, and air

c)

love, food, and friends

d)

shelter, nutrients, water, and oxygen

52.

Which of these is a nonliving part of a forest?

a)

mushroom

b)

soil

c)

worm

d)

tree

53.

An environment is made up of —

a)

only living thing

b)

only nonliving things

c)

living things and nonliving things

d)

humans and animals

54.

Habitats change over time. If animals do not adapt —

a)

the habitat will change again

b)

the seasons will become longer

c)

they will live

d)

they will die

55.

What is biodiversity?

a)

Is the variety of plants in our planet

b)

Is the variety of animals in our planet

c)

Is the variety of living things in our planet

d)

Is the variety of human beings in our planet

56.

What are the 3 life processes of all living things?

a)

nutrition, swimming and reproduction

b)

cytoplasm, membrane and nucleus

c)

animals, plants and fungus

d)

nutrition, interaction and reproduction

57.

What life process can you see in this image?

a)

reproduction

b)

interaction

c)

nutrition

58.

What life process can you see in this image?

a)

nutrition

b)

reproduction

c)

interaction

59.

What is the smallest unit of living things?

a)

the cytoplasm

b)

the cell

c)

the bacteria

d)

the spore

60.

What´s the name of an organism made up of only 1 cell?

a)

unicellular

b)

multicellular

c)

cell wall

d)

seed

61.

What is the name of organisms that have many cells?

a)

uniecllular

b)

multicellular

c)

bacteria

d)

fungus

62.

What is the name of the part of the cells that control the functions?

a)

membrane

b)

nucleus

c)

cytoplasm

d)

organelles

63.

What is the name of the liquid (jelly) inside the cell ?

a)

organelles

b)

cytoplasm

c)

nucleus

d)

vacuole

64.

what is the name of the part of the plant cells that contains food and water?

a)

nucleus

b)

cell wall

c)

vacuole

d)

cytoplasm

65.

What is the name of the part of the plant cell that is green and contains chloropyll?

a)

cell wall

b)

vacuole

c)

cytoplasm

d)

chloroplast

66.

Tissues are made up of

a)

cells

b)

organs

c)

systems

67.

Systems are...

a)

a group of nucleus

b)

a group of organs

c)

a group of organs working together

d)

a group of organs working independently

68.

Look at the picture: Cells can have different

a)

nutrients

b)

containers

c)

shapes or functions

69.

When we are running, in order to move our body, we are using mostly the....

a)

nervous system

b)

digestive system

c)

muscular system

d)

reproductive system

70.

When we eat or drink, the body system that we use the most is the...

a)

reproductive system

b)

respiratory system

c)

digestive system

d)

circulatory system

71.

What do humans use to detect information from the environment aroud us?

a)

the nose

b)

the 5 senses

c)

smell and touch

72.
Which of the following provides heat energy to living things?
a)
sun
b)
moon
c)
mars
d)
mercury
73.
This is the gas that we inhale (breathe in).
a)
oxygen
b)
helium
c)
carbon dioxide
d)
neon
74.
This is the gas that we exhale (breathe out).
a)
oxygen
b)
helium
c)
carbon dioxide
d)
neon
75.
This is needed for living cells and tissues to work
a)
fire
b)
water
c)
air
d)
land
76.
The sun is the source of all ________________.
a)
power
b)
food
c)
energy
d)
life
77.
Where do plants get nutrients to grow?
a)
soil
b)
air
c)
human
d)
trees
78.
Is this living or nonliving?
a)
Living
b)
Nonliving
79.
Is this living or nonliving?
a)
Living
b)
Nonliving
80.
What are the four things that all living things need to survive?
a)
Air, water, friends and sleep
b)
Air, water, food and love
c)
Air, water, food and shelter
d)
Water, food and shelter
81.

All living things require sunlight to survive.

a)

True

b)

False

82.

All living things can live in every temperature possible

a)

True

b)

False

83.

Plants use sunlight to make their own food (sugar)

a)

True

b)

False

84.

The basic building blacks from which all living organisms are made are

a)

cells

b)

DNA

c)

chromosomes

d)

Amoeba

85.

A normal human cell contains how many chromosomes?

a)

16

b)

26

c)

46

d)

14

86.

It is true, not all cells have a true nucleus, but all cells must have some sort of

a)

DNA

b)

Cytoplasm

c)

Osmosis

d)

Call Wall

87.

Surrounds and protects plant cells provides the structure stiff and strong

a)

Endoplasmic Reticulum

b)

Mitochondria

c)

Cell Wall

d)

Ribosomes

88.

Hold and protect cell control the movement of materials into and out of the cell gate

a)

Cell Membrane

b)

Chromosomes

c)

Vacuoles

d)

Nucleus

89.

A watery gel-like material in which cell orgeanelles move

a)

vacuole

b)

Golgi Apparatus

c)

Cytoplasm

d)

cell membrane

90.

Powerhouse of the cell organelle that is the site of ATP (energy) production

a)

Nuclear Membrane

b)

Cell Wall

c)

Mitochondria

d)

Vacuoles

91.

Contain chlorophyll capture the energy of sunlight and use it to produce food

a)

Chromosomes

b)

Chloroplasts

c)

DNA

d)

Golgi Apparatus

92.

Store food water and chemicals

a)

Vacuoles

b)

mitochondria

c)

ribosomes

d)

Nucleus

93.

Act as the 'brain' of the cell regulate and control all cell activities

a)

Cytoplasm

b)

Ribosomes

c)

Nucleus

d)

Chloroplasts

94.

Surround and protect the nucleus control the movement of materials into and out of the nucleus gate

a)

Mitochondria

b)

Nuclear Membrane

c)

Cell Wall

d)

Cell Membrane

95.

Direct cell activities; exist in the nucleus

a)

Endoplasmic Reticulum

b)

Chromosomes

c)

Chloroplasts

d)

ribosomes

96.

deoxyribonucleic acid; the carrier of genetic information

a)

DNA

b)

Golgi Apparatus

c)

Nuclear Membrane

d)

nucleus

97.

What does unicellular mean?

a)

Many cells

b)

2 cells

c)

1 cell

d)

0 cells

98.

What is an organism?

a)

A dead animal

b)

A living thing

c)

A pencil

d)

A shoe

99.

Which of the following is a single-celled organism?

a)

Dog

b)

Snail

c)

Amoeba

d)

hat

100.

Select a unicellular organism?

a)

Bacteria

b)

Tree

c)

Flower

d)

Frog

101.

Which one is NOT a life process?

a)

Get rid of waste

b)

Nutrition/Energy

c)

Shake it off

d)

Grow and develop

102.

Select the unicellular organisms that produce their own food. (They are also classified as producers/plants)

a)

Euglena and algae

b)

Bacteria and snail

c)

Tree and paramecium

d)

Flower and algae

103.

What makes unicellular organisms unique and simple?

a)

They can do all life process as one cell.

b)

They can fly and eat at Zaxby’s.

c)

They can survive working with other single-celled organisms.

104.

Why do multicellular organisms need so many cells?

a)

They need specialized cells to survive. Specialized cells perform a specific job/function.

b)

They need many cells to all do the same job/function.

c)

They need many cells to have a dancing cell party.

105.

What is the difference between multi-celled and single-celled’s organisms?

a)

Single-celled organisms are “simple” and multi-celled organisms are “crazy.”

b)

Single-celled organisms are “super” and multi-celled organisms are “complex.”

c)

Single-celled organisms are “simple” and multi-celled organisms are “complex.”

106.

True or False:


Single-celled organisms are able to live as one cell, and multi-celled organisms need many cells to live because each cell has specialized job.

a)

True

b)

False

107.

Which best explains why both cats and humans are multicellular organisms?

a)

They get energy from many food sources.

b)

They get energy from a single food source.

c)

They need many different types of cells working together to meet their basic needs.

108.

How do bacteria control their life processes/basic functions?

a)

Bacteria control their life processes within multi-­cells.

b)

Bacteria control their life processes within a single-cell.

c)

Bacteria work with other cells to control all their life processes.

109.

Why does a human require specialized cells to live?

a)

Specialized cells allow humans to adapt to changes in their environment.

b)

Human bodies have several body systems which require cells with different functions/jobs.

c)

Specialized cells allow for all life processes to occur in one cell.

110.

Which best explains how a single­-celled organism can survive without other cells?

a)

They do not need any substance from outside of the cell.

b)

They are able to perform all necessary functions within one cell

c)

They do not need to perform more than one function to survive.

111.

Which best explains why amoeba are able to survive without specialized cells?

a)

Amoeba are able to survive with the help of specialized cells.

b)

Amoeba are able to survive with the help of other organisms.

c)

Amoeba are able to survive because they carry out all life functions.

112.

Why do humans require many different types of cells to survive?

a)

Human cells are identical and work together to perform the same function.

b)

Human cells are specialized and work independently to perform different functions.

113.

Which best describes a function of survival that single-­celled organisms cannot perform?

a)

obtaining nutrients for energy

b)

grow and develop

c)

get rid of waste

d)

specialized cells that perform specific jobs

114.

Which best describes all unicellular organisms?

a)

Every cell is round

b)

Every cell can make food.

c)

Every cell can move on its own.

d)

Every cell performs all life functions.

115.
Which organism performs all life processes in one cell?
a)
grass
b)
bacteria
c)
mushroom
d)
butterfly
116.

Which of these phases do not belong in the inflammatory response phase?

a)

Visceral Fibroblastic Repair

b)

Fibroblastic Repair

c)

Maturation- Remodeling

d)

Inflammatory Response

117.

Pick out the FALSE statement about epithelial tissue.

a)

Epithelial tissue is vascular.

b)

Epithelial tissue provides physical protection for organs.

c)

Epithelial tissue functions in absorption & secretion.

d)

Epithelial tissue controls the permeability into and out of an area/organ.

e)

Epithelial tissue consists almost entirely of cells with very little extracellular material between them thereby forming a barrier against entry into the body.

118.

Understanding tissue structure and function is important because:

a)

There is a relationship between the structure of each tissue type (how it is organized) and its function (what it does).

b)

There is a relationship between tissue structure and organ function.

c)

Many diseases and pathologies are tissue and cell type specific.

d)

Changes at the tissue level affect the function of organs.

e)

All of these are correct.

119.

Epithelial cells

a)

cover body surfaces or form glands.

b)

usually have a free surface that is not in contact with other cells.

c)

have a basement membrane that attaches to underlying tissues.

d)

can be somewhat far away from a blood vessel.

e)

have all of these properties.

120.

The most correct classification of an epithelial tissue consisting of many layers of cells, in which the outer layers are flat and thin, and the basal layers are cuboidal or columnar is

a)

simple columnar epithelium.

b)

pseudostratified epithelium.

c)

stratified squamous epithelium.

d)

transitional epithelium.

e)

simple squamous epithelium.

121.

Which of these epithelial types is correctly matched with its major function?

a)

simple squamous epithelium - diffusion or filtration

b)

stratified squamous epithelium - protection from abrasion

c)

Simple cuboidal epithelium - active transport, facilitated diffusion, or secretion

d)

Simple columnar epithelium - secretion or absorption

e)

All these are correctly paired.

122.

Cell connections that bind adjacent cells together and form permeability barriers are called:

a)

tight junctions.

b)

gap junctions.

c)

desmosomes.

d)

plasma junctions.

e)

tonosomes.

123.

In connective tissue, cells whose names contain the suffix - clast:

a)

produce matrix

b)

maintain the matrix

c)

break down the matrix for remodeling

d)

ingest foreign substances through phagocytosis

e)

are non-motile cells that release histamines and other chemicals to promote inflammation.

124.

Which of these connective tissue cells is NOT correctly matched with its function?

a)

blast cells - make holes in extracellular matrix

b)

clast cells - break down the extracellular matrix

c)

cyte cells - maintain the extracellular matrix

d)

mast cells - release chemicals promoting inflammation

e)

macrophages - move about and ingest foreign substances

125.

Which of the following fiber types is not correctly paired with its function?

a)

collagen - flexible, resists stretching

b)

reticular - forms a supporting network between cells

c)

elastic - allows for consistent stretch and recoil

d)

collagen - gives tissue its strength

e)

All of these are correct.

126.

The connective tissue that makes up the external ear is:

a)

dense collagenous connective tissue.

b)

hyaline cartilage.

c)

fibrocartilage.

d)

elastic cartilage.

e)

loose or areolar connective tissue.

127.

During tissue repair, the clot is first replaced by _____, a delicate connective tissue that consists of fibroblasts, collagen, and capillaries.

a)

granulation tissue

b)

phagocytic tissue

c)

dense connective tissue

d)

fibrin tissue

e)

pus

128.

The major symptoms of inflammation include:

a)

redness and swelling

b)

heat

c)

pain

d)

disturbance of function

e)

All of these are symptoms of inflammation

129.
A place where plants and animals live and grow naturally is called a ______________.
a)
shelter
b)
tree
c)
habitat
d)
organism
130.

What is the habitat shown in the picture?

a)

jungle

b)

desert

c)

arctic

d)

ocean

131.

What can we find in this habitat?

a)

polar bear

b)

tiger

c)

camel

d)

crocodile

132.

Where can we find this animal?

a)
b)
c)
133.

What animals do we find in this habitat?

a)
b)
c)
d)
134.

You find _______ in the jungle.

a)

coral

b)

trees

c)

polar bear

d)

shark

135.

Where do we find this animal?

a)
b)
c)
136.

Name the habitat.

a)

polar region

b)

ocean

c)

jungle

d)

desert

137.
What is true about habitats?
a)
they must be warm during the year for plants to survive
b)
they all have different kinds and amounts of soil, water, sunlight, and living things. 
138.
Where does this animal live?
a)
grassland
b)
jungle
c)
ocean
d)
arctic
139.
Which habitat is very dry, has very little plant life, and is too hot to support many animals?
a)
Stream
b)
Forest
c)
Desert
d)
Polar Region
140.

Which one is correct?

a)

Camels live in the rainforst.

b)

Polar Bears live in the arctic.

c)

Zebras live in the ocean.

d)

orangutans live in the desert.

141.
Fish, dolphins, whales, sea turtles, and plants live here. What habitat is this describing?
a)
Stream
b)
Polar Region
c)
Rainforest
d)
Ocean
142.
What animal would you most likely find in the forest habitat?
a)
Sea Turtle
b)
Dragon Fly
c)
Brown Bear
d)
Zebra
143.

Which stage of life does a human feel matured?

a)

Adulthood

b)

Childhood

c)

Infancy

d)

None of the Above

144.

This is the time where you only depend on your parents for food, clothes, protection and love?

a)

Childhood

b)

Infancy

c)

Old Age

d)

All of the above

145.

3 years old is already in the Childhood Stage.

a)

True

b)

False

146.

What stage of life where you will experience body poor eyesight and hearing?

a)

Childhood

b)

Infancy

c)

Old Age

d)

Adolescence

147.

Their body systems are fully developed.

a)

Childhood

b)

Adolescence

c)

Adulthood

d)

Infancy

148.

Which stage is he in?

a)

child

b)

adult

c)

baby

d)

teenager

149.

Which stage is she in?

a)

baby

b)

old age

c)

adult

d)

teenager

150.

Which stage are they in?

a)

teenager

b)

old age

c)

baby

d)

child

151.

I can run and I can read.

a)
b)
152.

I can drive a car.

a)
b)
153.

What are the living and nonliving things in an environment or area?

a)

predator

b)

producer

c)

ecosystem

d)

abiotic factor

154.

An organism that can make its own food

a)

decomposer

b)

producer

c)

consumer

155.

Breaks down and feeds on the remains of other organisms

a)

decomposer

b)

consumer

c)

producer

156.

Interacting food chains found in an ecosystem

a)

food web

b)

food chain

c)

predator

157.

An animal that hunts and eats other animals for energy

a)

prey

b)

predator

c)

decomposer

158.

These organisms cannot make their own food; they must eat something for energy

a)

decomposer

b)

consumer

c)

producer

159.

NON-living things found in an ecosystem

a)

biotic

b)

abiotc

c)

habitat

160.

LIVING things in an ecosystem

a)

biotic

b)

abiotic

c)

ecosystem

161.

Choose the producer.

a)

rock

b)

tree

c)

cow

d)

bird

162.

Choose the decomposer.

a)

grass

b)

elephant

c)

bacteria

d)

bird

163.

Choose the consumer.

a)

mushroom

b)

horse

c)

tree

d)

grass

164.

Where does the food chain START?

a)

with consumers that eat grass

b)

with the sun giving energy to producers

c)

with the sun giving energy to consumers

d)

with consumers eating other consumers

165.

What is scarcity and how could it affect an ecosystem?

a)

Too many animals or plants in an area can cause the ecosystem to fail.

b)

Too many animals or plants in an area can cause the animals to be too fat.

c)

Too few animals or plants in an area can cause other animals to go hungry or die.

d)

Too few animals or plants in an area can cause pollution.

166.

Which of the human body systems is responsible for exchanging gases between the body and the air?

a)

Nervous System

b)

Digestive System

c)

Respiratory System

d)

Skeletal System

167.

Bones are part of the skeletal system and the job of the bones is to -

a)

fight diseases

b)

support the body

c)

send messages

d)

break down nutrients

168.

Which two body systems would work together to quickly move a hand away from a flame?

a)

nervous and muscular

b)

respiratory and skeletal

c)

digestive and nervous

d)

muscular and circulatory

169.

The human immune system and the skin both play a role in which of the following functions?

a)

sending and receiving messages from the brain

b)

transporting oxygen to all parts of the body

c)

storing nutrients for later use

d)

protecting the body from illness

170.

The digestive and circulatory systems work together to provide the body with -

a)

skin

b)

bones

c)

nutrients

d)

waste

171.

What is the main function of the digestive system?

a)

It converts food into simpler substances for the body to absorb as nutrients and gives the body energy.

b)

It supplies the blood with gases needed for survival.

c)

It helps the body move.

d)

It helps the body eliminate toxic substances.

172.

What is the main function of the respiratory system?

a)

It converts food into simpler substances for the body to absorb as nutrients and gives the body energy.

b)

It supplies the blood with oxygen in the lungs, and removes carbon dioxide from the body into the atmosphere.

c)

It allows the body's internal and external organs to move so that they can do their jobs.

d)

It helps the heart communicate with the brain.

173.

What is the main function of the muscular system?

a)

It helps the heart communicate with the brain.

b)

It converts food in simpler substances for the body to absorb as nutrients and gives the body energy.

c)

It supplies blood with oxygen in the lungs, and removes carbon dioxide from the body into the atmosphere.

d)

It allows the body to move when attached to the bone. It also allows movement in internal organs, such as heart and intestines.

174.

The ________________ filter the blood and remove toxins, excess water, and other waste.

a)

heart and brain

b)

stomach and intestines

c)

liver and kidneys

d)

bladder and heart

175.

The body's wastes are stored in the ___________ as urine until they are released from the body during urination.

a)

liver

b)

kidneys

c)

colon

d)

bladder

176.

The largest organ of the human body is the _________________, which is part of the integumentary system.

a)

brain

b)

intestines

c)

skin

d)

liver

177.

Stimuli from both outside and inside the body travel through the nerves as electrical impulses, reaching the brain in fractions of a second. The brain sends messages back to parts of the body just as quickly, directing the body parts on how to react. The lightning-fast communication system allows the ______________ to control all parts of the human body at once.

a)

nervous system

b)

skeletal system

c)

respiratory system

d)

excretory system

178.

The main function of the ___________ system is to maintain a stable internal environment, or homeostasis.

a)

integumentary

b)

endocrine

c)

nervous

d)

respiratory

179.

_____________ make up tissues. Tissues make up organs. Organs make up organ systems. Organ systems make up organisms.

a)

cells

b)

bacteria

c)

blood

d)

muscles

180.

Which body systems work together to move your hand when you touch something hot?

a)

skeletal and respiratory

b)

nervous and muscular

c)

endocrine and excretory

d)

respiratory and muscular

181.

Which choice represents three parts of the digestive system?

a)

colon, intestines, anus

b)

liver, colon, trachea

c)

bladder, colon, esophagus

d)

skull, colon, kidneys

182.

How is the human skull like a bicycle helmet?

a)

It can be purchased at Academy Sports.

b)

It protects the human brain and sensory organs.

c)

It can be easily removed.

d)

It has 22 parts.

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