Natural Selection & Adaptations

Front

What is a gene pool?

Back

All the genes and traits of a population.

Front

What is the second law of natural selection as it relates to giraffe neck length?

Back

The giraffe's food are the leaves on tall trees, in which the short and medium-neck giraffes could not reach. They died and the giraffes with long necks could reach the leaves and they survive.

Front

What is considered high fitness in the arctic rabbit?

Back

White-colored fur to help blend into their surrounding environment.

Front

What does fitness (a fit trait) mean in the context of natural selection?

Back

The tendency of a trait in helping an organism survive, find a mate, and produce offspring.

Front

What is the process of natural selection?

Back

Individuals with more favorable traits can adapt, survive, and produce offspring in their environment.

Front

Define natural selection.

Back

The process by which organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is adaptation?

Back

A trait that helps an organism survive and reproduce in its environment.

Front

What is the role of variation in natural selection?

Back

Variation provides the raw material for natural selection to act upon, allowing some individuals to be more fit than others.

Front

What is the significance of overproduction in natural selection?

Back

Overproduction leads to competition for resources, which can result in the survival of the fittest.

Front

What is a fitness advantage?

Back

A trait that increases an organism's chances of survival and reproduction.