GCSE Biology – Trophic levels
Learning Objectives
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Question 1 of 34
1. Question
What is a decomposer?
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Question 2 of 34
2. Question
What is a detritivore?
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Question 3 of 34
3. Question
What is an apex predator?
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Question 4 of 34
4. Question
What is detritus?
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Question 5 of 34
5. Question
What is a food web?
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Question 6 of 34
6. Question
What do food webs show?
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Question 7 of 34
7. Question
What would happen if an organism was taken out of a food web?
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Question 8 of 34
8. Question
What is each rank in a food chain called?
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Question 9 of 34
9. Question
How long are most food chains?
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Question 10 of 34
10. Question
What is a trophic level?
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Question 11 of 34
11. Question
What type of organism is at tropic level 1 of a pyramid of biomass?
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Question 12 of 34
12. Question
What type of organism is at tropic level 2 of a pyramid of biomass?
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Question 13 of 34
13. Question
What trophic level is a producer?
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Question 14 of 34
14. Question
What trophic level is a primary consumer?
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Question 15 of 34
15. Question
What trophic level is a secondary consumer?
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Question 16 of 34
16. Question
What trophic level is a tertiary consumer?
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Question 17 of 34
17. Question
Which type of organism has the highest trophic level?
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Question 18 of 34
18. Question
Why are most food chains only 4-5 trophic levels?
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Question 19 of 34
19. Question
What is a pyramid of numbers?
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Question 20 of 34
20. Question
Where does each trophic level go on a pyramid of numbers?
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Question 21 of 34
21. Question
Why are pyramids of numbers not that useful?
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Question 22 of 34
22. Question
What is a better diagram than a pyramid of numbers?
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Question 23 of 34
23. Question
What is biomass?
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Question 24 of 34
24. Question
What do pyramids of biomass show?
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Question 25 of 34
25. Question
Why do we use dry biomass?
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Question 26 of 34
26. Question
Where does each trophic level go on a pyramid of biomass?
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Question 27 of 34
27. Question
What does a larger box show on a pyramid of biomass?
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Question 28 of 34
28. Question
In a pyramid of biomass, what happens to width of each bar?
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Question 29 of 34
29. Question
Why does the width of the biomass bar decrease for each trophic level?
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Question 30 of 34
30. Question
What is a difficulty with making a pyramid of biomass?
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Question 31 of 34
31. Question
Why is there energy loss at each trophic level?
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Question 32 of 34
32. Question
Why else is there energy loss at each trophic level?
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Question 33 of 34
33. Question
What percentage of energy is transferred from one trophic level to the next?
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Question 34 of 34
34. Question
What percentage of the Sun’s light energy is used in photosynthesis?
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