“A fish dies when taken out of water whereas a wall lizard will die if kept underwater.” Mention the term used to describe such abilities that allow fish and lizard to survive in their respective habitats.



Adaptation is the physical or behavioural characteristic of an organism that helps an organism to survive better in the surrounding environment.Adaptation is essential for the survival of living organisms. Animals, which are unable to adapt to changing environmental changes die. These adaptations are a result of genetic changes. The animals that survive pass on the mutated genes to their offsprings. This is known as natural selection.

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