Statement I: The number and types of organisms present on Earth is called biodiversity.
Statement II: The number of species that are known and described range between 1.7-1.8 million.
Text Solution
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Statement I is correct: Biodiversity is defined as the variety and variability of all life forms—including the total number and different types of organisms—present on Earth or within a specific habitat.
Statement II is correct: According to biological records (such as those referenced in NCERT and IUCN guidelines), the currently known and described species on Earth range from 1.7 to 1.8 million.
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