EVS 1b – Trophic Levels & Energy Transfers in Ecosystems
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- Question 1 of 17
1. Question
What happens as you move up an energy pyramid?
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2. Question
Put the following organisms in order from the most amount of energy at the bottom to the least amount of energy at the top on the energy pyramid.
- snake
- acorn
- squirrel
- coyote
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3. Question
Select ALL of the following that organisms use most of the energy for that they receive from food. (4 choices)
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4. Question
Why do organisms have to keep eating?
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5. Question
What does a food web represent?
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6. Question
Put the following trophic levels in the correct order from most amount of energy at the bottom to the least amount of energy at the top.
- Tertiary Consumer
- Primary Consumer
- Producer
- Secondary Consumer
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7. Question
Diagram that shows the energy available to each trophic level in an ecosystem; 10% is passed on to upper levels, the rest is lost as heat
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8. Question
The efficiency of energy transfer from a lower trophic level to the next highest level is roughly
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9. Question
Which animal is the apex predator?
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10. Question
The arrows in a food chain or web represents what?
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11. Question
Match the following definitions with the correct term.
Sort elements
- Found at the base of a food chain (also known as autotrophs)
- Eat primary consumers (can be carnivores and omnivores)
- Animals that eat primary producers (also known as herbivores)
- Organisms that break down dead or decaying organisms.
- Producers
- Secondary consumers
- Primary consumers
- Decomposer
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12. Question
Order the following organisms in order of receiving the most amount of energy at the bottom to the least amount of energy at the top.
- snake
- hawk
- grass
- mouse
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13. Question
Which organism do the owl and the weasel compete for in the food web?
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14. Question
Match the following organisms by the amount of energy they receive throughout each trophic level.
Sort elements
- Eagle
- Grass
- Frog
- Grasshopper
- Snake
- .01
- 100
- 1
- 10
- .1
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15. Question
What does a food web represent?
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16. Question
Put the following trophic levels in the correct order from most amount of energy at the bottom to the least amount of energy at the top.
- Secondary Consumer
- Producer
- Primary Consumer
- Tertiary Consumer
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17. Question
Diagram that shows the energy available to each trophic level in an ecosystem; 10% is passed on to upper levels, the rest is lost as heat
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