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12th Standard English Medium Biology (Botany) Subject Ecosystem Creative 2 Mark Questions with Solution Part - II

Published on: 22/06/2021

QB365 provides detailed and simple solution for every Creative Questions in class 12 Biology Subject. It will helps to get more idea about question pattern in every Creative questions with solution.

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Std: 12th Standard - Biology

chapter: - Creative Questions

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Questions:

Generic 2

5 x 2 = 10

Define plant succession.

Why do we obtain an inverted pyramid in a parasite ecosystem?

Define Grey carbon and Black carbon.

What are biotic components?

Mention any two climatic factors and edaphic factors of an ecosystem.

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Answers Key:

Generic 2

5 x 2 = 10

Successive replacement of one type of plant community by the other of the same areal place is known as plant succession.

The pyramid of number in a parasite ecosystem is always inverted, because it starts with a single tree. Therefore there is gradual increase in the number of organisms in successive tropic levels from producer to tertiary consumers.

Grey carbon - carbon stored in fossil fuel (coal, oil and biogas deposits in the lithosphere).
Black carbon - carbon emitted from gas, diesel engine and coal fired power plants.

Biotic (living) components includes all living organisms like plants, animals, fungi and bacteria. They form the trophic structures of any ecosystem.

(a) Climatic factors: Light and Air.
(b) Edaphic factors: Soil and pH of soil.