Question

- Give reasons.
a. Energy flow through an ecosystem is
one way'.
b. Equilibrium is necessary in the various
bio-geo-chemical cycles.
c. Flow of nutrients through an ecosystem
is cyclic.
- Explain the following cycles in your
own words with suitable diagrams.​

Answer 1

Answer:

a)The producers convert solar energy into chemical energy in the form of organic compounds. The primary consumers (herbivores) derive their nutrition from the producers. According to the energy transfer law, only 10% of energy is transferred from one trophic level to the other. So, the energy that is captured by the producers does not revert back to the Sun and the energy transferred to the herbivores does not come back to the producers. It just keeps on moving to the next trophic level in a unidirectional way. That is why the flow of energy in the food chain is always unidirectional/one way.

b)Equilibrium is necessary in the various biogeochemical cycles because there are various biogeochemical cycles which includes carbon cycle, nitrogen cycle, oxygen cycle, phosphorus cycle, and the water cycle. To maintain the ecosystem and the cycles equilibrium becomes very essential

c)Flow of nutrients through an ecosystem is cyclic as the nutrients move from one trophic level to another trophic level all the way up and then back down. ... These nutrients manufactured by the producers are passed on to the primary consumers/herbivores.

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