III. Illustrations of Evolution

A. Artificial Selection B. Direct Observation C. Homology D. Fossil Record

Artificial Selection

Human driven with a specific goal

Ex. human interbreeding pigeons, producing cauliflower from parent plant

Direct Observation

Ex. Antibiotic resistance

Natural selection is editing not creating

FYI he antibiotic did not create the resistance, the allele was already in the population

Natural selection favors a genetically variable population

This leads to an advantage in a current environment

Homology

Similarity resulting from common ancestry

Homologous structure -> show descent with modification

Fossil Record

Remains or traces of previously existing organism in sedimentary rick

Record of past biodiversity

Illustrates changes in morphology and species distribution

Can help infer evolutionary relationships