(3) Unit 7 Topics 1 2 and 3 Packet

Natural Selection

The process in which individuals with advantageous traits have higher survival and reproduction rates than those without such traits.

Descent with Modification

The modern definition of evolution, where heritable traits can change from generation to generation.

Biogeography

The geographic distribution of a species.

Fitness

An organism's ability to survive and reproduce.

Advantages Traits

Traits that increase an organism's chances of survival and reproduction.

Selective Pressure

Environmental factors that influence which traits are favored in a population.

Artificial Selection

The selective breeding of domesticated plants and animals to encourage desirable traits.

Genetic Variation

Differences in DNA among individuals in a population.

Adaptive Traits

Inherited characteristics that enhance an organism's survival and reproduction.

Phenotypic Variation

Variation in physical traits among individuals in a population that natural selection can act upon.