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Ecological Pyramids

Total questions: 10

Worksheet time: 14mins

Name
Class
Date
1.
A food pyramid represent the relative amount of energy in trophic levels. Which of the following correctly shows a food pyramid?
a)
A
b)
B
c)
C
d)
D
2.
How much of the energy in each level of a ecological pyramid gets lost as heat or used by the organism so that it cannot be passed on to the next trophic level?
a)
80%
b)
90%
c)
10%
d)
20%
3.
In this ecological pyramid which type of consumer gets only 10% of the energy stored in plants?
a)
Herbivore
b)
Carnivore
c)
Omnivore
d)
Secondary Consumer
4.
The diagram represents different levels of a marine food pyramid. Between which two levels is the least amount of energy transferred
a)
R and Q
b)
S and R
c)
T and S
d)
U and T
5.
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
6.
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
7.

Which statement best describes what will happen if the population of herbivores in the community decreases?

a)

the population of foxes will increase

b)

the population of hawks will increase

c)

the population of rabbits will increase

d)

the population of meadow plants will increase

8.
The diagram represents different levels of a marine food pyramid. Between which two levels is the greatest amount of energy transferred
a)
R and Q
b)
S and R
c)
T and S
d)
U and T
9.

What does a pyramid of numbers compare?

a)

the number of individual organisms at each trophic level

b)

the number of individuals in each population

c)

the number of predators and prey in an ecosystem

d)

the number of different populations at each trophic level

10.

The amount of energy from the producers in this energy pyramid provide the primary consumers is 54,000 joules. From this amount, 540 joules are provided to the tertiary consumers.

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