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NEET2015BotanyEcosystemActual

During ecological succession:

Options

  1. AThe establishment of a new biotic community is very fast in its primary phase.
  2. BThe numbers and types of animals remain constant.
  3. CThe changes lead to a community that is in near equilibrium with the environment and is called pioneer communi
  4. DThe gradual and predictable change in species composition occurs in a given area.

Correct answer

D. The gradual and predictable change in species composition occurs in a given area.

Step-by-step solution

Ecological succession involves a gradual and fairly predictable change in the species composition of a given area, i.e., the numbers and types of animals. The establishment of a new biotic community is very slow in its primary phase. The first set of species or community that develops in a bare area in ecological succession is the pioneer community. Pioneer species facilitate succession. The final steady stable self-sustaining community in an ecological succession that lead to a community that is in near equilibriu

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