Unit 6 Vocabulary

The process of biological change in populations over time that makes descendants genetically different from their ancestors

• Gradualism

• Punctuated Equilibrium

• Evolution

• Natural Selection

Match the following

• Microevolution

• Large scale evolution affecting a species across populations

• Fitness

• A measure of how well an organism can survive in its environment

• Macroevolution

• Small scale evolution affecting a single population

• Group of organisms that can successfully interbreed and produce viable, fertile offspring

• Mechanism of evolution that occurs when random change in the allele frequency happens in the population

• Adaptation

• Genetic Drift

• Isolation

• Variation

• Mechanism of evolution that favors traits that potentially decrease survival, but increase likelihood of reproduction

• Sexual Selection

• Natural Selection

• Gene Flow

• Migration

• A feature that allows an organism to better survive in its environment

• Gene Pool

• Descent with Modification

• Natural Selection

• Adaptation

Mechanism of evolution where organisms with the “best” traits are favored and thus live longer and reproduce more, causing changes in the population over time so that the fittest survive

• Natural Selection

• Microevolution

• Macroevolution

• Variation

When there are no changes in the allele frequencies in a population over time, and thus evolution is not occurring

• Stabilizing Selection

• Adaptating

• Genetic equilibrium

• Natural Selection

• A diagram used to predict evolutionary relationships among groups of organisms

• Phylogenetic tree

• Punnett square

• Pedigree

• none of these

Evolutionary history of a species

• Embrology

• Morphology

• Paleontology

• Phylogeny