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Trophic level: Quiz

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Question 1: Plants do not usually eat other organisms, but pull nutrients from the soil and manufacture their own food using ________.
Cell wallPlant physiologyAlgaePhotosynthesis

Question 2: The trophic level of an organism is the position it occupies on the ________.
PredationHerbivoreCarnivoreFood chain

Question 3: Animals can also eat each other; the ________ eats crayfish and crayfish eat young bullfrogs.
TetrapodAsiatic toadBullfrogDuttaphrynus melanostictus

Question 4: Producers (autotrophs) are typically plants or ________.
PhotosynthesisCell wallAlgaeWild fisheries

Question 5: The fisheries scientist ________ sets the values of trophic levels to one in plants and detritus, two in herbivores and detritivores (primary consumers), three in secondary consumers, and so on.
Fisheries scienceCarl WaltersDaniel PaulyTony J. Pitcher

Question 6: Food chains start at level 1 with primary producers, move to herbivores at level 2, predators at level 3 and typically finish with ________ or apex predators at level 4 or 5.
CarnivorePredationFilter feederHypercarnivore

Question 7: This has resulted in ________ at the higher trophic levels.
Fisheries managementOverfishingSustainable fisheriesWild fisheries







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