Respuesta :

First we have to understand that a food chain is a series of steps in which organisms transfer energy by eating and being eaten. A food web is a feeding relationship among the various organisms in an ecosystem that forms a network of complex interactions. A food web links all the food chains in an ecosystem.



Answer: Grass, Grasshopper, Snake, Hawk.


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Answer:

Lesson 3: Movement of Energy in Ecosystems

Explanation:

1. B. grass,grasshopper,snake hawk

2. D. eliminated as heat

3. C. river

4. A. Biomass at the fourth trophic level is approximately ten times smaller than biomass at the trophic level.