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biology

Total questions: 80

Worksheet time: 2hrs 38mins

Name
Class
Date
1.

body system that breaks down food and absorbs nutrients

a)

digestive system

b)

mouth

c)

mechanical digestion

2.

where digestion begins

a)

chemical digestion

b)

mouth

c)

mechanical digestion

3.

physical breakdown of food

a)

chemical digestion

b)

esophagus

c)

mechanical digestion

4.

breaking down food with enzymes

a)

chemical digestion

b)

esophagus

c)

peristalsis

5.

tube connecting the mouth to the stomach

a)

stomach

b)

esophagus

c)

peristalsis

6.

waves of muscle contractions (squeezing)

a)

stomach

b)

small intestine

c)

peristalsis

7.

large muscular sac that continues the mechanical and chemical digestion of food

a)

stomach

b)

small intestine

c)

liver

8.

Digestive organ where most chemical digestion and absorption of food takes place

a)

pancreas

b)

small intestine

c)

liver

9.

produces bile to break up fat particles

a)

pancreas

b)

large intestine

c)

liver

10.

organ that stores bile

a)

gall bladder

b)

large intestine

c)

liver

11.

absorbs water into bloodstream

a)

gall bladder

b)

large intestine

c)

liver

12.
What is the definition for digestion?
a)
Breaking down food into smaller nutrients
b)
Getting rid of waste products
c)
Getting food into our bodies
d)
Getting nutrients into our bloodstream, so that our cells can use them
13.
Chewing, grinding, and churning are examples of...
a)
mechanical digestion
b)
chemical digestion
14.
What do the villi do?
a)
Digests food in the mouth.
b)
Digests food in the stomach
c)
Protects the stomach from digesting iteself
d)
Absorbs nutrients from food so the body has energy.
15.
A fluid in the mouth that helps digest food.
a)
pepsin
b)
pepsi
c)
saliva
d)
salty
16.
Provides additional enzymes(pancreatic juice) to help nutrients get absorbed by the small intestine.
a)
liver
b)
kidneys
c)
gall bladder
d)
pancreas
17.
What stores bile?
a)
Colon
b)
Gall Bladder
c)
Small Intestine
18.

waves of muscular contractions that move food through the digestive tract.

a)

digestion

b)

absorption

c)

peristalsis

d)

villi

19.

The pancreas, liver, and gallbladder are known as...

a)

accessory organs

b)

the digestive tract

c)

acid makers

d)

digestion helpers

20.

absorbs nutrients

a)

stomach

b)

small intestine

c)

large intestine

d)

liver

21.

A model that shows the amount of energy available at each feeding level of an ecosystem

a)

ecosystem

b)

nitrogen cycle

c)

energy pyramid

d)

food web

22.

the scientific study of how organisms interact with their environment and all the other organisms that live in that environment

a)

biotic factor

b)

food chain

c)

ecosystem

d)

ecology

23.

an organism that captures energy and stores it in food as chemical energy

a)

producer

b)

decomposer

c)

comsumer

d)

scavenger

24.

a model of the feeding relationships between many different consumers and producers in an ecosystem

a)

food chain

b)

ecosystem

c)

food web

d)

energy pyramid

25.

a particular environment and all the living things that are supported by it

a)

desert

b)

ecology

c)

ecocsystem

d)

tropical rainforest

26.

an organism that gets its energy by eating or consuming other organisms

a)

consumer

b)

producer

c)

scavenger

d)

decomposer

27.

a living thing in an ecosystem

a)

producer

b)

abiotic factor

c)

consumer

d)

biotic factor

28.

the movement of carbon through Earth, its atmosphere and living things

a)

water cycle

b)

cycle

c)

photosynthesis

d)

carbon cycle

29.

a non-living physical or chemical part of an ecosystem

a)

abiotic factor

b)

biotic factor

c)

transpiration

d)

respiration

30.

organisms that break down dead plant and animal matter into simpler compounds

a)

consumers

b)

producers

c)

decomposers

d)

scavengers

31.

the movement of water through Earth, its atmosphere and living things

a)

carbon cycle

b)

tsnuami

c)

nitrogen cycle

d)

water cycle

32.

In what type of relationship do both organisms benefit from the relationship?

a)

Parasitism

b)

Mutualism

c)

Commensalism

d)

Predation

33.

What term do ecologists use to describe where an animal lives (an animal’s home)?

a)

Ecosystem

b)

Ecologist

c)

Habitat

d)

Population

34.

What is a species?

a)

Different animals that compete for the same resources

b)

A group of similar organisms that can reproduce with each other

c)

A group of organisms that live together

d)

A group of organisms that are physically and functionally very different from each other

35.

What type of organism can make its own food?

a)

A producer (an autotroph)

b)

A consumer (a heterotroph)

c)

A decomposer

d)

All of the above

36.

What type of consumer eats plants?

a)

Herbivore

b)

Omnivore

c)

Carnivore

d)

Both herbivore and omnivore

37.

What is a food chain?

a)

A representation of an organism’s life cycle

b)

A way to show the feeding relationships between organisms

c)

The sequence of events that occurs during photosynthesis

d)

A way to show how animals interact with nonliving parts of the environment

38.

The first organism in a food chain is ALWAYS a:

a)

producer

b)

consumer

c)

decomposer

d)

Any of the above

39.

How much energy is transferred between trophic levels?

a)

25%

b)

20%

c)

10%

d)

90%

40.

In what type of relationship do both organisms benefit from the relationship?

a)

Parasitism

b)

Mutualism

c)

Commensalism

d)

Predation

41.
What is the energy source for the water cycle?
a)
the sun
b)
the earth
c)
water
d)
the moon
42.
Which of these is an example of precipitation?
a)
snow
b)
air
c)
clouds
d)
vapor
43.
Which is the opposite of condensation?
a)
runoff
b)
evaporation
c)
precipitation
d)
transpiration
44.
Snow, sleet, hail, and rain are all examples of  ________________. 
a)
evaporation
b)
condensation
c)
accumulation
d)
precipitation
45.
What happens after groundwater at the very end/beginning of the water cycle?
a)
Evaporation
b)
Transpiration
c)
Condensation
d)
Groundwater
46.
When water _________, dew forms.
a)
Melts
b)
Evaporates
c)
Condenses
d)
Precipitates
47.
What is the water cycle?
a)
the 3 forms of water
b)
the movement of water on, above, or below the surface of the Earth
c)
when water melts
d)
when clouds form
48.
Which stage does the #2 show in the diagram?
a)
condensation
b)
evaporation
c)
precipitation
d)
run off
49.
Which stage does the #3 show in the diagram?
a)
condensation
b)
evaporation
c)
precipitation
d)
run off
50.
what does the #4 show in the diagram?
a)
condensation
b)
evaporation
c)
precipitation
d)
run off
51.
This is what heats up the water to start the  water cycle. 
a)
sun
b)
moon
c)
stars
d)
Mars
52.

In which area would the rate of evaporation be the lowest?

a)

Over the ocean

b)

Over the mountains

c)

Over the rainforest

d)

Over the desert

53.
Precipitation occurs because 
a)
the droplets evaporate in the air
b)
the droplets are too light for the air to hold
c)
the droplets are too heavy for the air to hold
54.
What is water that flows in rivers and streams into the oceans and lakes?
a)
evaporating
b)
condensing
c)
precipitating
d)
runoff
55.

What is precipitation?

a)

Sweat from our bodies on hot days

b)

Warm rain but not cold snow or sleet

c)

Gas that we use in furnaces or ovens

d)

Any form of water that falls from the sky

56.
The water cycle has
a)
a beginning and an end. 
b)
no beginning an no end. 
c)
only a beginning. 
d)
only an end. 
57.

What are formed when water vapor condenses and come together?

a)

Clouds

b)

Mountains

c)

Transpiration

d)

Valleys

58.
The most common form of precipitation in the summer is...
a)
Rain
b)
Snow
c)
Sleet
d)
Hail
59.

Is precipitation any form of water that falls back to earth?

a)

Yes

b)

No

60.

When clouds fill with water and can't hold anymore, the water falls from the clouds as -

a)

precipitation

b)

clouds

61.

How does carbon get from animals and back into the atmosphere? (CHOOSE ALL THAT APPLY)

a)

Respiration (breathing)

b)

After they die, they are broken down by decomposers

c)

Photosynthesis

d)

None of these

62.

How do animals get carbon?

a)

Photosynthesis

b)

They absorb it from the atmosphere

c)

The sun

d)

They eat other plants and animals

63.

What is CO2?

a)

Air

b)

Oxygen

c)

Carbon Dioxide

d)

Dioxide

64.

What is causing global warming? (Choose All That Apply)

a)

The earth is too close to the sun

b)

There is too much carbon dioxide in the atmosphere

c)

Because we're running out of water

d)

Because we're cutting down all the trees and not planting more

65.

What made Venus way too hot for anything to live on it? (Choose All That Apply)

a)

Global Warming

b)

Too much Carbon Dioxide in the Atmosphere

c)

Too close to the sun

d)

It's just hot

66.

Choose the things that take carbon dioxide (CO2) out of the air.

a)

Plants

b)

Water

c)

Trees

d)

Humans

67.

What are the top things that contribute to global warming? (Choose more than one)

a)

Cow Farts

b)

Burning Gas in cars and factories

c)

Cutting down Trees

d)

Solar Power

68.

What are some ways we can fight global warming? (Choose all that apply)

a)

Eat chicken instead of beef

b)

Plant trees

c)

Recycle

d)

Tell others to help fight

69.

Which describes the relationship between plants and animals in the carbon cycle?

a)

Plants produce and release oxygen that animals need

b)

Plants produce and release carbon dioxide that animals need

c)

Animals produce and release oxygen that plants need

d)

Animals produce oxygen that plants turn into carbon dioxide

70.

Plants use ____________ to make their own food

a)

Water

b)

Sunlight

c)

Carbon dioxide

d)

All of these

71.
Combustion is another word for __________.
a)
Transportation
b)
Respiration
c)
Fossil Fuels
d)
Burning
72.
if there is a fire in a forest, there will be less _ in the environment?
a)
nitrogen
b)
oxygen
73.
How is the burning of fossil fuels related to global warming?
a)
Magic
b)
Fuels are hot
c)
Greenhouse effect
d)
Photosynthesis
74.
Which of the following is an example of a decomposer?
a)
Owl
b)
Fish
c)
Tree
d)
Mushroom
75.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
76.
If the plant population decreased, the amount of carbon would _________.
a)
Stay the same
b)
Increase
c)
Decrease
77.
What is happening at 1?
a)
respiration: releasing CO2
b)
decomposing CO2 in the soil
c)
photosynthesis: absorbing CO2
d)
turning CO2 from the atmosphere into organic molecules
78.
Which of the following add carbon dioxide to the atmosphere?
a)
volcanoes
b)
combustion of fossil fuels
c)
animal and plant respiration
d)
all of these
79.

Organisms release carbon dioxide gas through a process called

a)

filtration

b)

respiration

c)

photosynthesis

d)

nitrogen cycle

80.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels

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