AP ES Adaptations

Adaptation

new trait that increases an organisms fitness (ability 2 survive & reproduce)

Natural Selection

organisms that are better adapted 2 their env. Survive & reproduce more offsprings

Evolution

process by which species change over time to better survive in their environments

Selective pressure/ force

the environmental condition that kills individuals without the adaptation (trait to survive or reproduce)

Pace of evolution

The more rapidly in environment changes, the less likely a species in the environment will be to adapt to those changes

Genetic diversity

variety of genes within a species that allows it to adapt to different environments.

What are the two reasons for genetic diversity mentioned?


Random mutations and crossing over

How can a mutation in DNA affect an organism?


It can result in an entirely new trait

What is crossing over in genetics?


Exchange of genetic information between chromosomes during meiosis

Genome


The complete set of genetic information in an organism's DNA, which determines its traits and characteristics.