NEET BIOLOGY

GENETICS AND EVOLUTION

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is an adaptation?
A
A group of organisms that can mate to produce fertile offspring
B
A process by which inherited traits in a population change over generations
C
A trait that improves chances of survival and reproduction for a group of individuals in a population
D
A process by which individuals that are better adapted to their environment are more likely to survive and reproduce
Explanation: 

Detailed explanation-1: -The idea of natural selection is that traits that can be passed down allow organisms to adapt to the environment better than other organisms of the same species. This enables better survival and reproduction compared with other members of the species, leading to evolution.

Detailed explanation-2: -Examples of behavioral adaptations include migration, hibernation, gathering and storing food, defense behaviors, and rearing young. Instinctive behavior is an unlearned, inborn tendency to behave in a way characteristic of a species, i.e. migration.

Detailed explanation-3: -Adaptations may include structural, physiological, or behavioral traits that improve an organism’s likelihood of survival and reproduction. Adaptations evolve at the population level by natural selection, and thus adaptation is a mechanism by which species adapt to their environments.

Detailed explanation-4: -Adaptation can protect animals from predators or from harsh weather. Many birds can hide in the tall grass and weeds and insects can change their colour to blend into the surroundings. This makes it difficult for predators to seek them out for food.

Detailed explanation-5: -reproductive adaptation. A peculiarity of the reproductive mechanism of a species that results in it being better fitted to its environment (for example, prolonged seed dormancy).

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