Question
WRITE NOTES : Biodiversity:
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Answer
(i) Biodiversity is the richness of living organisms in nature due to presence of varieties of organisms, ecosystems and genetic variations within a species. Biodiversity occurs at three different levels.
(a) Genetic Diversity: Occurrence of diversity among the organisms of same species is genetic diversity. For example, each human being is different from the other.
(b) Species Diversity Innumerable species of organisms occur in nature. This is called as species diversity. Species diversity includes various types of plants, animals and microbes.
(c) Ecosystem Diversity Many ecosystems are present in each region. Ecosystem is formed through the interaction between plants, animals, their habitat and changes in the environment. Each ecosystem has its own characteristic animals, plants, microbes and abiotic factors. Ecosystems are also of two types, natural and artificial.
(a) Genetic Diversity: Occurrence of diversity among the organisms of same species is genetic diversity. For example, each human being is different from the other.
(b) Species Diversity Innumerable species of organisms occur in nature. This is called as species diversity. Species diversity includes various types of plants, animals and microbes.
(c) Ecosystem Diversity Many ecosystems are present in each region. Ecosystem is formed through the interaction between plants, animals, their habitat and changes in the environment. Each ecosystem has its own characteristic animals, plants, microbes and abiotic factors. Ecosystems are also of two types, natural and artificial.
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