WorksheetsEcological Energy Pyramids
Total questions: 15
Worksheet time: 8mins
In an energy pyramid, energy _________ as you move up the pyramid.
increases
decreases
stays the same
changes up and down
In this energy pyramid, which organisms have the most energy available?
Producers
Carnivores
Herbivores
Top Predator
In this energy pyramid, which organism has the least amount of energy available?
Producers
Carnivores
Herbivores
Top Predator
The diagram represents a pyramid of energy in an ecosystem. Which level would most likely contain members of the plant kingdom?
A
B
C
D
The 10% rule states that 10% of energy moves from each trophic level to the next.
In the pyramid, if the producers level contains 1234 kilocalories, how many kilocalories are transferred to the primary consumer level?
123.4
1.234
1234
1234
The 10% rule states that 10% of energy moves from each trophic level to the next.
In the pyramid, if the producers level contains 1234 kilocalories, how many kilocalories are transferred to the bird (apex predator)?
123.4
1.234
1234
1234
Biomass is the total number of organisms in a given area.
Which trophic level in the pyramid has the highest biomass?
PRODUCERS
PRIMARY CONSUMERS
SECONDARY CONSUMERS
TERTIARY CONSUMERS
What type of diagram shows the amount of energy that moves from one trophic level to another in a food web?
Energy Pyramid
Food Web
Ecosystem
Food Chain
The diagram is intended to show relationships in an ecosystem. What do the arrows represent?
The direction of population migration
Differences in dietary habits
Progressively smaller organisms
The direction of the energy flow
The diagram represents different levels of a marine energy pyramid.
Between which two levels is the greatest amount of energy transferred?
R and Q
S and R
T and S
U and T
Which of the following statements about this food web is FALSE?
The ultimate source of energy for the whole food web is the radiant energy of the sun.
Arrows in a food web show the direction that energy moves from one trophic level to another.
Energy is used up by each trophic level, and lost as heat energy.
100% of the energy made by the vegetation is passed to the geese and mute swans.
A pyramid shape is used to show the amount of available energy at each trophic level because ...
energy amounts are the same at each trophic level.
energy decreases as you go up the food chain, just like the pyramid shape gets smaller as you go up.
energy increases up the food chain just like the pyramid shape gets smaller as you go up.
What is the ultimate source of energy for an ecosystem?
Producers
Decomposers
Tertiary Consumers (APEX predators)
Sun
What is the average amount of energy transferred from one trophic level to the next?
90%
10%
20%
50%
If there is 1000 Kcal available at the producers level, how much energy is available in the primary consumers level?
100 Kcal
10 Kcal
1 Kcal
1000 Kcal
