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Consumer ecosystem

Total questions: 27

Worksheet time: 25mins

Name
Class
Date
1.
The frog is a predator to what prey in this food chain?
a)
frog
b)
grass
c)
grasshopper
d)
hawk
2.
The grasshopper is a prey to what predator in this food chain?
a)
snake
b)
grass
c)
frog
d)
hawk
3.
Why is a deer classified as a herbivore?
a)
A deer makes its own food.
b)
A deer eats only plants.
c)
A deer eats only animals.
d)
A deer eats plants and animals.
4.
Why is a racoon classified as an omnivore?
a)
A racoon eats only animals.
b)
A racoon eats only plants.
c)
A racoon makes its own food.
d)
A racoon eats plants and animals.
5.
What are organisms that use other organisms for food in order to gain energy?
a)
decomposers
b)
producers
c)
herbivores
d)
consumers
6.
What type of organism makes its own food?
a)
consumer
b)
carnivore
c)
producer
d)
animal
7.
Which are decomposers?
a)
humans
b)
trees
c)
red wolves
d)
worms
8.
A red wolf is a __________ and a ________.
a)
producer and hunter
b)
consumer and carnivore
c)
decomposer and carnivore
d)
decomposer and omnivore
9.
From where do producers get their energy?
a)
the ground
b)
other animals
c)
decomposers
d)
the sun
10.
The process of using sunlight, carbon dioxide, and water to make sugar and oxygen is called _________?
a)
chlorophyll
b)
evaporation
c)
photosynthesis
d)
transportation
11.
What do the arrows represent in this diagram?
a)
who is being eaten
b)
the flow of energy
c)
the decomposition of organisms
d)
what things can change into
12.

One of the nutrient cycles moves from an atmospheric gaseous form to the soil through both abiotic and biotic processes, moves through the food web, then is returned to the soil or to the atmosphere. Which cycle fits this description?

a)

Nitrogen

b)

Carbon

c)

Phosphorus

d)

Water

13.

What organism is responsible for nitrogen fixation?

a)

plants

b)

humans

c)

bacteria

d)

viruses

e)

mice

14.

Which cycle is shown in this diagram?

a)

Nitrogen

b)

Carbon

c)

Phosphorus

d)

Water

e)

Oxygen

15.

Which cycle is shown in this diagram?

a)

Nitrogen

b)

Carbon

c)

Phosphorus

d)

Water

e)

Oxygen

16.

Chemical process by which plants use sunlight to obtain sugars.

a)

Transpiration

b)

Respiration

c)

Photosynthesis

d)

Percolation

e)

Evaporation

17.

Type of bacteria that will put Nitrogen back into the soil or transform it into a usable form.

a)

Weathering

b)

Run-Off

c)

Combustion

d)

Nitrogen-fixing

e)

Precipitation

18.

Types of organisms that serve to break down inorganic waste and deposit into the soil.

a)

Diffusion

b)

Decomposers

c)

Detrivores

d)

Fossil fuels

e)

Denitrification

19.

Process by which nitrogen is extracted from the soil.

a)

Diffusion

b)

Decomposers

c)

Detrivores

d)

Fossil fuels

e)

Denitrification

20.

What does not produce carbon dioxide?

a)

Photosynthesis

b)

Cellular Respiration

c)

Burning Fossil Fuels

d)

Plant and animal decay

21.

In the carbon cycle, plants take in __________

a)

oxygen

b)

carbon dioxide

c)

nitrogen

d)

carbon

22.

How does the carbon in grass become part of a lion?

a)

Carbon in the grass doesn't end up in a lion

b)

The lion breathes in carbon given out by the plant

c)

The carbon ends up in the lion's food chain

d)

The lion eats the grass

23.
The efficiency of energy transfer from a lower trophic level to the next highest level is roughly
a)
1%
b)
10%
c)
100%
d)
1000%
24.
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%
25.
Organisms that create their own energy from sunlight or chemicals
a)
Herbivore
b)
Omnivore
c)
Autotroph
d)
Heterotroph 
26.

What is the sugar that plants create during Photosynthesis?

a)

Glucose

b)

Caramel

c)

Chlorophyll

d)

Syrup

27.

What is released as a waste product of photosynthesis?

a)

Carbon Dioxide

b)

Oxygen

c)

Water

d)

Hydrogen