Energy Pyramids Slides
Presentation
•
Science
•
7th Grade
•
Hard
Bryan Carter
FREE Resource
20 Slides • 19 Questions
1
2
3
4
5
Fill in the Blanks
Type answer...
6
7
Multiple Choice
Which type of consumer eats both plants and animals?
Omnivores
Herbivores
Carnivores
Scavengers
8
9
Multiple Choice
Which nutrient do decomposers return to the soil that is essential for plant growth?
Nitrogen
Oxygen
Hydrogen
Helium
10
Open Ended
Explain how producers, consumers, and decomposers interact to keep an ecosystem functioning.
11
Multiple Choice
Which of the following best describes the role of decomposers in an ecosystem?
They break down dead and decaying matter to recycle nutrients.
They create their own food using sunlight.
They must eat other organisms for food.
They provide shelter for other organisms.
12
13
14
Open Ended
How do decomposers keep the ecosystem running?
15
16
17
18
Open Ended
What would happen to the food web if one species is removed? Use evidence from the images to support your answer.
19
Multiple Select
Which statements about trophic levels are correct?
Primary consumers eat producers.
Secondary consumers eat primary consumers.
Tertiary consumers eat secondary consumers.
Producers eat primary consumers.
20
21
22
Open Ended
Explain why there are fewer organisms at higher trophic levels in an energy pyramid.
23
Fill in the Blanks
Type answer...
24
25
Open Ended
Why is there less energy available at higher trophic levels?
26
27
Open Ended
Match the following terms to their correct definitions: Producer, Primary Consumer, Decomposer, Trophic Level, 10% Rule.
28
29
30
Multiple Choice
Which of the following best explains why an energy pyramid gets smaller at the top?
Because there are fewer organisms at higher levels.
Because energy is lost as heat at each trophic level.
Because the top levels are farther from the sun.
Because only plants can make their own food.
31
32
33
Multiple Select
Which of the following are true about decomposers in an energy pyramid?
They recycle nutrients back into the ecosystem.
They are found at the base of the pyramid.
They consume only plants.
They break down dead material.
34
Fill in the Blanks
Type answer...
35
Multiple Choice
According to the 10% rule, if a plant contains 1000 units of energy, how much energy would be available to the primary consumer?
100 units
10 units
900 units
500 units
36
37
Multiple Choice
What is the primary source of energy in most ecosystems?
The Sun
Producers
Consumers
Decomposers
38
Open Ended
Summarize how energy flows through an ecosystem based on what you learned in this lesson.
39
Open Ended
Why does an energy pyramid get smaller at the top? Where does the lost energy go?
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