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NTA Abhyas NEET2020BotanyEcosystemPractice

Select the CORRECT statement.

Options

  1. ACarbon cycle is imperfect cycle while phosphorus cycle is perfect cycle.
  2. BTen percent law was proposed by Odum in 1942.
  3. CGrazing food chain helps in releasing inorganic nutrients to the cycling pool.
  4. DSeral community is a transitional community which develops in an area during succession.

Correct answer

D. Seral community is a transitional community which develops in an area during succession.

Step-by-step solution

The process of the changes occurring in the structure of various organisms in an ecosystem over a period of time is referred to as ecological succession. During ecological succession, one of the intermediate stages that develops is called the seral community. It gets replaced by a successive community during the succession process. The phosphorus cycle is considered as an imperfect cycle as the phosphorus that originates from a source does not go back to it. Lindemann proposed the Ten Percent Law for energy transfe

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