In an ecosystem, when energy moves from one trophic level to another, ita)increasesb)decreasesc)remains constantd)none of the aboveCorrect answer is option 'B'. Can you explain this answer?

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In an ecosystem, when energy moves from one trophic level to another, it

a)
increases
b)
decreases
c)
remains constant
d)
none of the above

Correct answer is option 'B'. Can you explain this answer?

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Most Upvoted Answer

In an ecosystem, when energy moves from one trophic level to another,...

Key-Points

Ecosystem: All organisms such as plants, animals, microorganisms, and human beings as well as the physical surroundings interact with each other and maintain a balance in nature. All the interacting organisms in an area together with the non-living constituents of the environment form an ecosystem.

Food chain: A food chain shows the feeding relationship between different organisms in a particular environment and/or habitat.

A food chain shows how energy is passed from the sun to producers, from producers to consumers, and from consumers to decomposes, such as fungi.
They also show how animals depend on other organisms for food.

Only 10% of energy is transferred to higher levels from the previous one. So, the demand for food is more in higher levels. So, the food chain does not go for more than 3-4 tropic levels. This leads to more complex food forms known as a food web.

Primary (100%) → First level/ Primary (10%) → Second-level/ Secondary (1%) → Third level / Tertiary (0.1%).

Hence, when energy moves from one trophic level to another, it decreases.

Answered by Notes Wala · View profile

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