1. GMAS Practice Question
Organisms that share a trophic level are:
Elephants and lions
Cheetahs and giraffes
Chipmunks and squirrels
Wolves and sparrows

2. look at) the dependence (reliance) of organisms (any
Standard S7L4
Students will examine (study;
look at) the dependence
(reliance) of organisms (any
living thing) on one another and
their environments
(surroundings; locations).

3. How does energy decrease as it moves through an ecosystem?
ESSENTIAL QUESTION
How does energy decrease as it moves through an ecosystem?

4. Energy Pyramid
Energy pyramid: A model used to show the amount of energy available to living things in an ecosystem.

5. Label the pyramid with the four (4) trophic levels

6. Fourth trophic level Third trophic level Second trophic level
Label the pyramid with the four (4) trophic levels
Fourth
trophic level
Third trophic level
Second trophic level
First trophic level

7. Label the pyramid with the main source of energy for the food chain

8. Label the pyramid with the main source of energy for the food chain
First trophic level
Producers :make their own food
through photosynthesis; main source of energy is the sun

9. Label the pyramid with the three (3) types of consumers
Fourth
trophic level
Third trophic level
Second trophic level

10. Label the pyramid with the three (3) types of consumers
Fourth
trophic level
carnivore
Third trophic level
carnivore or omnivore
Second trophic level
herbivore or omnivore
First trophic level
Producers :make their own food
through photosynthesis; main source of energy

11. Label the parts of the pyramid that are consumers and that part that is the producer
Fourth
trophic level
Carnivore
Decomposers and scavengers (saprophytes)
heterotrophs
Third trophic level
carnivore or omnivore
Second trophic level
herbivore or omnivore
First trophic level
Producers :make their own food
through photosynthesis; main source of energy
autotroph

12. Label the parts of the pyramid with the levels of consumers
Fourth
trophic level
Carnivore
Decomposers and scavengers (saprophytes)
heterotrophs
Third trophic level
carnivore or omnivore
Second trophic level
herbivore or omnivore
First trophic level
Producers :make their own food
through photosynthesis; main source of energy
autotroph

13. Label the parts of the pyramid with the levels of consumers
Do not write
Fourth
trophic level
Carnivore
Decomposers and scavengers (saprophytes)
*Third-level or tertiary consumer
Third-level consumer
heterotroph
Second-level consumer
Third trophic level
carnivore or omnivore
*Second-level or secondary consumer
First-level consumer
Second trophic level
herbivore or omnivore
*First-level or primary consumer
First trophic level
Producers :make their own food
through photosynthesis; main source of energy
autotroph

14. Label the parts of the pyramid with the levels of consumers
Number of organisms and energy decrease as you move up the energy pyramid 10% is passed to the next
trophic level
Fourth
trophic level
Carnivore
Decomposers and scavengers (saprophytes)
*Third-level or tertiary consumer
heterotroph
Third trophic level
carnivore or omnivore
*Second-level or secondary consumer
Second trophic level
herbivore or omnivore
*First-level or primary consumer
First trophic level
Producers :make their own food
through photosynthesis; main source of energy
autotroph

16. Complete all trophic levels to show 10% energy being passed on to the next level
100,000 kcal

17. 100 kcal
1,000 kcal
10,000 kcal
100,000 kcal

18. Complete all trophic levels to show a 10% decrease in energy (energy loss)
125,000 kcal

19. 125 kcal
1,250 kcal
12,500 kcal
125,000 kcal

20. Shade the pyramid to show the decrease of energy as matter is transferred
(page 492)

21. Complete all trophic levels to show a 10% decrease in energy (energy loss)
17,500 kcal

22. 17.5 kcal
175 kcal
1,750 kcal
17,500 kcal