Which term refers to the ability of a species or organism to survive and reproduce?

the term was coined by the Charles Darwin in which he specifies two reasons for an organism to survive and reproduce

1. Fitness. it is the ability of an organism to reproduce and survive in an environment

2. Adaptation. the inherited qualities and characteristics which increases chances of human survival.

the term is fitness

its d lol

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answer; ///i believe the correct answer is (aids) acquired immune deficiency syndrome;