ANATOMY

Detailed explanation-1: -According to Charles Darwin’s theory of evolution by natural selection, organisms that possess heritable traits that enable them to better adapt to their environment compared with other members of their species will be more likely to survive, reproduce, and pass more of their genes on to the next generation.

Detailed explanation-2: -An adaptation is any heritable trait that helps an organism, such as a plant or animal, survive and reproduce in its environment.

Detailed explanation-3: -Individuals with adaptive traits-traits that give them some advantage-are more likely to survive and reproduce. These individuals then pass the adaptive traits on to their offspring.

Detailed explanation-4: -Explanation: The term “fitness” in evolutionary biology means the ability of an organism to pass on its genetic material to its offspring. Biological or “Darwinian” fitness is being able to live long enough to reproduce and keep the population or species alive.