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Hint: Primary consumers are those animals that eat plants. Primary consumers eat producers. They tend to be small in size and there are many of them.
Complete answer:
The primary consumers consist of the second level. These are mainly herbivores. The trophic level of an organism is the position it occupies in the food web. The food chain is a succession of organisms that eat other organisms. A food web starts at trophic level 1 with primary producers such as plants, can move to herbivores at level 2, carnivores at level 3 or higher, and typically finish with apex predators at level 4 or 5. The path along the chain can form either a one-way flow or a food “web”. Ecological communities with higher biodiversity form more complex trophic paths. The secondary consumers feed on small plant eating animals (primary consumers). Secondary consumers include crayfish and frogs.
Additional Information: In ecosystems, there are more than one food chain for most organisms, since most organisms eat more than one kind of food or are eating by more than one type of predators. The network of overlapping food chains for an ecosystem is called food web.
The correct option is (B) small fish.
Note:Trophic levels are numbered according to how far the organisms are along the food chain. Energy is passed up a food chain or web from lower to higher trophic levels. However, generally only about 10 percent of the energy at one level is available to the next level. This is represented by the ecological pyramid.
Complete answer:
The primary consumers consist of the second level. These are mainly herbivores. The trophic level of an organism is the position it occupies in the food web. The food chain is a succession of organisms that eat other organisms. A food web starts at trophic level 1 with primary producers such as plants, can move to herbivores at level 2, carnivores at level 3 or higher, and typically finish with apex predators at level 4 or 5. The path along the chain can form either a one-way flow or a food “web”. Ecological communities with higher biodiversity form more complex trophic paths. The secondary consumers feed on small plant eating animals (primary consumers). Secondary consumers include crayfish and frogs.
Additional Information: In ecosystems, there are more than one food chain for most organisms, since most organisms eat more than one kind of food or are eating by more than one type of predators. The network of overlapping food chains for an ecosystem is called food web.
The correct option is (B) small fish.
Note:Trophic levels are numbered according to how far the organisms are along the food chain. Energy is passed up a food chain or web from lower to higher trophic levels. However, generally only about 10 percent of the energy at one level is available to the next level. This is represented by the ecological pyramid.
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