The number and types of organisms present on earth is known…

Biology The Living World All Topic Question for Revision Test Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 21, 2026

The number and types of organisms present on earth is known as –

Biodiversity

Biomagnification

Biome

Biosphere

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Biodiversity (biological diversity) refers to the total variety and variability of life on Earth. Specifically, it describes the number and types of all living organisms—including plants, animals, fungi, and microorganisms—present in the world or a particular habitat. Currently, scientists have described approximately 1.7 to 1.8 million species, which represents the known portion of Earth's biodiversity.

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