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Module 1 Practice - Life Science Ecosystems

Total questions: 102

Worksheet time: 5hrs 47mins

Name
Class
Date
1.
What is the only process that removes carbon from the atmosphere?
a)
combustion
b)
cellular respiration
c)
photosynthesis
d)
decomposition
2.
What converts nitrogen into a useable form for plants and animals?
a)
bacteria
b)
fungi
c)
rain
3.
Which nutrient is not cycled through the atmosphere?
a)
carbon
b)
nitrogen
c)
phosphorous
d)
water
4.

Photosynthesis is an important part of the ______ cycle

a)

Carbon

b)

Water

c)

Phosphorus

d)

Nitrogen

5.

In evaporation, water _______

a)

turns from a liquid state to vapor (gas)

b)

falls from the sky like rain or snow

c)

forms clouds

d)

gets locked into ice

6.
How do animals get nitrogen?
a)
the atmosphere 
b)
eating other organisms
c)
rainwater
d)
lightning 
7.
When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.
a)
Water
b)
Atmosphere
c)
Sun
d)
Air
8.
During which phase of the nitrogen cycle is nitrogen gas returned to the atmosphere?
a)
Ammonification
b)
Nitrogen fixation
c)
Nitrification
d)
Denitrification
9.
Which of the following events removes water from the atmosphere?
a)
Precipitation
b)
Evaporation
c)
Infiltration
d)
Run off
10.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms. 
d)
How carnivores get their food. 
11.
The image provided is an example of a(n):
a)
Producer
b)
Autotroph
c)
Consumer
d)
Insect
12.

In the food web above, what organism is a tertiary consumer?

a)

Fox

b)

Frog

c)

Vole

d)

Grass

13.
In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?
a)
80%
b)
90%
c)
10%
d)
20%
14.
If these organisms were arranged in an ecological biomass pyramid, which organism would have the least amount of biomass?
a)
coyote
b)
insect
c)
lizard
d)
shrub
15.
The diagram represents a pyramid of energy in an ecosystem.  Which level would most likely contain organisms that do photosynthesis?
a)
A
b)
B
c)
C
d)
D
16.

The amount of energy stored by the primary consumers is 54,000 joules..

Based on this model, how much of the energy was provided to the secondary consumers?

a)

53,460 joules

b)

5,400 joules

c)

540 joules

d)

54 joules

17.

Organism that makes its own food

a)

consumer

b)

producer

c)

decomposer

d)

predator

18.

Organism that eats other things for food

a)

consumer

b)

producer

c)

decomposer

d)

prey

19.

Overlapping food chains

a)

food cycle

b)

food network

c)

food system

d)

food web

20.

Passing of energy, in the form of food, from one organism to another

a)

food cycle

b)

food network

c)

food chain

d)

food system

21.

Representation of the feeding relationships & flow of energy in a food chain

a)

food pyramid

b)

food network

c)

food system

d)

food assembly

22.

Consumer that eats only plants

a)

omnivore

b)

insectivore

c)

carnivore

d)

herbivore

23.

Consumer that eats only other animals

a)

omnivore

b)

frugivore

c)

carnivore

d)

herbivore

24.

Consumer that eats both plants and animals

a)

omnivore

b)

fungivore

c)

carnivore

d)

herbivore

25.

If a disease strikes the snakes the rabbits will

a)

increase

b)

decrease

c)

not be affected

26.

If a disease strikes the snakes the hawks will

a)

increase

b)

decrease

c)

not be affected

27.
Lions only eat buffalo, antelopes, zebras and crocodiles. They are called __________.
a)
Omnivore
b)
Herbivore
c)
Carnivore
d)
Delivore
28.
Elephants only eat leaves, fruit, nuts and grass. They are called __________.
a)
Omnivore
b)
Fortivore
c)
Herbivore
d)
Carnivore
29.

What are the trophic levels in an energy pyramid?

a)

Tertiary consumers, secondary consumers, primary consumers, and producers

b)

animals and plants

c)

heat, heat, heat, heat

d)

herbivores, secondary carnivores, carnivores, green plant

30.

which trophic level has the most energy?

a)

tertiary

b)

secondary consumers

c)

producers

d)

primary consumers

31.

Which trophic level has least amount of energy?

a)

producers

b)

secondary consumers

c)

primary consumers

d)

tertiary consumers

32.

what is the first tropic level called?

a)

apex predators

b)

tertiary consumers

c)

producers

d)

secondary consumers

e)

primary consumers

33.

what is the second tropic level called?

a)

primary consumers

b)

apex predators

c)

secondary consumers

d)

producers

e)

tertiary consumers

34.

What would happen to the bird if the green fish died out?

a)

the bird population would grow

b)

the bird population would die out

c)

the smaller fish will die out

35.

What would happen if their were no producers?

a)

Every population would grow larger

b)

Everything would die out

c)

The animals would make their own food

36.

What would happen if the primary consumers died out?

a)

the producers would grow and the secondary and tertiary consumers would die

b)

producers would die out

c)

consumers would grow

37.

Is a scavenger a primary consumer?

a)

Yes

b)

No

38.

decomposers are producers.

a)

true

b)

false

39.
In the energy pyramid here, which organisms have the most energy available?
a)
Producers
b)
Carnivores
c)
Herbivores
d)
Top Predator
40.
In the energy pyramid below, which organism has the least amount of energy available?
a)
Producers
b)
Herbivores
c)
Carnivores
d)
Top Predator
41.
If there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?
a)
10 Kcal
b)
1 Kcal
c)
100 Kcal
d)
1000 Kcal
42.
This diagram shows the amount of energy that moves from one feeding level to another in a food web.
a)
Energy Pyramid
b)
Food Web
c)
Ecosystem
d)
Food Chain
43.
If these organisms were arranged in a food pyramid, which organism would have the least amount of total energy available?
a)
coyote
b)
insect
c)
lizard
d)
shrub
44.
The diagram represents a pyramid of energy in an ecosystem.  Which level would most likely contain members of the plant kingdom?
a)
A
b)
B
c)
C
d)
D
45.
Which organism recieves the least amount of energy from the producer?
a)
Owl
b)
Grasshopper
c)
Lilypad
d)
Mouse
46.
The largest group of organisms found in a food web would be:
a)
Primary Consumers
b)
Producers
c)
Decomposers
d)
Tertiary Consumers
47.

Who is the producer?

a)

lettuce

b)

greenfly

c)

ladybird

d)

thrush

48.
oxygen is a gas produced by _ and used by  _ 
a)
plants and animals 
b)
photosynthesis and carbon dioxide 
c)
animals and plants 
d)
carbon dioxide and photosynthesis
49.
All of the carbon in existence is continually recycled in the carbon cycle
a)
True
b)
False
50.
How is the burning of fossil fuels related to global warming?
a)
Magic
b)
Fuels are hot
c)
Greenhouse effect
d)
Photosynthesis
51.
Which of the following removes carbon from the atmosphere?
a)
Combustion
b)
Respiration
c)
Photosynthesis
d)
Death
52.
Which of the following is an example of a decomposer?
a)
Owl
b)
Fish
c)
Tree
d)
Mushroom
53.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
54.
Which process converts carbon in the form of sugar into carbon dioxide gas?
a)
Bioremediation
b)
Photosynthesis
c)
Respiration
d)
Transpiration
55.

If the plant population decreased, the amount of carbon in the atmosphere would _________.

a)

Stay the same

b)

Increase

c)

Decrease

56.

oxygen is a gas produced by _____ and used by ________

a)

plants and animals

b)

photosynthesis and carbon dioxide

c)

animals and plants

d)

carbon dioxide and photosynthesis

57.
carbon dioxide is a gas produced  by ________ and used by __________
a)
plants and animals 
b)
carbon and photosynthesis
c)
animals and plants 
d)
photosynthesis
58.

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

59.

Which is a true statement?

a)

Humans depend on oxygen, plants depend on carbon dioxide

b)

Plants produce carbon dioxide

c)

Humans depend on carbon dioxide, plants depend on oxygen

d)

Humans don't depend on plants for the air they need

60.

Plants use ____________ to make their own food

a)

Water

b)

Sunlight

c)

Carbon dioxide

d)

All of these

61.

Which gas do plants release, that humans depend on for survival?

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sugar

62.

C6H12O6 is also known as glucose (sugar). Where is it found?

a)

Plants

b)

Animals

c)

Both plants and animals

d)

Neither plants or animals

63.

Animals use oxygen for _____________.

a)

breathing

b)

creating food

c)

making glucose

d)

transpiration

64.

It acts as an important ingredient of food for all living beings through the process of photosynthesis.

a)

Carbon

b)

Nitrogen

c)

Water

d)

None of these

65.

It cannot be absorbed by living things on its own for use, and we breathe it in and back out again.

a)

Carbon

b)

Nitrogen

c)

Water

d)

None of these

66.

What are the two elements found in Water?

I. Hydrogen

II. Oxygen

III. Carbon Dioxide

IV. Helium

a)

I and III

b)

II and III

c)

I and II

d)

IV only

67.

According to NASA,

Nitrogen makes up _____% of our atmosphere.

a)

21%

b)

50%

c)

93%

d)

78%

68.

According to NASA,

Oxygen makes up _____% of our atmosphere.

a)

50%

b)

21%

c)

93%

d)

78%

69.

_________ provides most of the oxygen on earth. 

a)

Decomposition

b)

Cellular Respiration

c)

Photosynthesis

d)

Nitrogen Fization

70.

______and _________are created when living organisms die

a)

Coal

b)

Oxygen

c)

Oil

d)

Nitrogen

71.

_______________ are the living organisms that benefit from nitrogen.

a)

Humans

b)

Animals

c)

Aquatic life

d)

Plants

72.

Carbon is released back into the atmosphere through _______

a)

Photosynthesis

b)

Cell Respiration

c)

Decomposition

d)

Nitrogen cycle

73.

Burning fossil fuels lead to ____________

a)

Greenhouse effect

b)

Cleaner air

c)

Less humidity

d)

Nuclear energy

74.

Deforestation causes an increase in ____________

a)

Oxygen

b)

Nitrogen

c)

Carbon dioxide

d)

Increased habitats

75.

Nitrogen goes through the process of ________ to become available for plant use. 

a)

Transformation

b)

Transpiration

c)

Denitrification

d)

Fixation

76.

Which of these nitrogen cycle processes converts atmospheric nitrogen to a soil form of nitrogen that is usable by plants?

a)

nitrogen fixation

b)

nitrification

c)

denitrification

d)

ammonification

e)

assimilation

77.
Organisms that break down dead plants & animals and release nitrogen back into atmosphere...
a)
bacteria
b)
plants
c)
animals
d)
producers
78.
Organisms that need nitrogen to survive
a)
only plants
b)
only animals
c)
only bacteria
d)
all living organisms
79.
Plants and animals cannot use nitrogen directly from the air.
a)
True
b)
False
80.

Nitrogen fixation happens in the ______

a)
Air 
b)
Soil 
c)
Ground Water 
d)
Plants 
81.

According to this diagram, what turns atmospheric nitrogen into NH3NH_3  ?

a)

nitrogen fixing bacteria

b)

plants

c)

denitrifying bacteria

d)

animals

82.
The process by which sugar is converted into energy (ATP) by living organisms is called
a)
photosynthesis
b)
cellular respiration
83.
The products of cellular respiration are
a)
carbon dioxide, water, energy
b)
oxygen and sugar (glucose)
84.
The products of photosynthesis are
a)
carbon dioxide, water, energy
b)
sugar (glucose), oxygen, water
85.
The reactants in photosynthesis are
a)
carbon dioxide, water
b)
sugar (glucose), oxygen
86.
The reactants in cellular respiration are
a)
sugar (glucose), oxygen
b)
carbon dioxide, water
87.
The green pigment in plants is called
a)
melanin
b)
chlorophyll
88.
The green pigment in plants absorbs
a)
oxygen
b)
light
89.
Select the balanced equation that represents cellular respiration.
a)
C6H12O6 + 6O2 −−> 6CO2 + 6H2O + Energy
b)
2C6H12O6 + 4O2 −−> 4CO2 + 6H2O + Energy
90.
Chlorophyll is the only pigment found in plants.
a)
false
b)
true
91.
The sugar organisms need to convert to energy is called
a)
sucrose
b)
glucose
92.
The organelle responsible for energy is the 
a)
mitochondria
b)
nucleus
93.
The process by which plants make their own food is called
a)
photosynthesis
b)
cellular respiration
94.

In what organelle does photosynthesis take place in?

a)

chlorophyll

b)

chloroplast

c)

cytoplasm

d)

mitochondria

95.

What is the ultimate source of energy for all living things?

a)

electricity

b)

plants

c)

sun

d)

food

96.

What is the correct equation for cellular respiration?

a)

O2 + C6H12O6 -> CO2 + H2O + Energy

b)

O2 + C6H12O6 + Energy -> CO2 + H2O

c)

CO2 + H2O -> O2 + C6H12O6 + Energy

d)

CO2 + H2O + Energy -> O2 + C6H12O6

97.
The three things plants need are sunlight, water, and CO2 for photosynthesis.
a)
True
b)
False
98.
Which of the following structure is where cellular respiration occurs in the cell?
a)
nucleus
b)
cytoplasm
c)
mitochondria
d)
vacuoles
99.
What is cellular respiration?
a)
the breakdown of glucose  to release ATP
b)
the breakdown of glucose to release NADH
c)
the breakdown of glucose to release FADH
d)
the breakdown of glucose to release carbon
100.

Why are many plants green?

a)

plant cells are green

b)

plants absorb green light

c)

chlorophyll reflects green light

d)

rigid cell walls are green

101.

Animals can...

a)

Do the processes photosynthesis

b)

do the processes of cellular respiration

c)

Use photosynthesis and cellular respiration

102.
Plants can...
a)
Only use photosynthesis
b)
Only use cellular respiration
c)
Use photosynthesis and cellular respiration

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