Natural Selection/Adaptations Unit Test

Front

What is natural selection?

Back

The process by which certain traits or characteristics become more or less common in a population over time, based on their impact on survival and reproduction.

Front

What are structural adaptations?

Back

Physical features of an organism that enhance its survival, such as sharp teeth, feathers, or porcupine quills.

Front

What is an example of a non-structural adaptation?

Back

The ability to produce venom is a physiological adaptation, not a structural one.

Front

What is artificial selection?

Back

The process by which humans breed specific plants or animals for desired traits.

Front

What is variation in a population?

Back

Differences or changes within a group or population.

Front

What is the fourth postulate of Darwin's theory of natural selection?

Back

Selection.

Front

What is competition in natural selection?

Back

The struggle between organisms for limited resources such as food, space, and mates.

Front

What is overproduction in natural selection?

Back

The concept that organisms tend to produce more offspring than can survive to adulthood.

Front

What is adaptation?

Back

A trait that increases an organism's chances of survival and reproduction in a specific environment.

Front

What is the role of environmental factors in natural selection?

Back

Environmental factors determine which traits are advantageous for survival and reproduction.