Bio evolution

demko

Darwins 9 pillars.

Natural variation,Some variations are favorable, Over-repurduction, Natural Selection, Descent with modification

Lamark- Aquired charicteristics

Use vs disues. Used traits stay, and unesed ones go

Mechanisms of Evolution

Pinky- Genetic drift, goes small then later generations get those genetics

Ring finger-Selective Mating

Middle- Mutation, source of genetic varation

Pointer- Gene flow, when individual leave or enter a new home.

Thumb- Natural Selection

Embryology

the study of embryos with similar features

Fossil Record

See changes in organisms over time

Bio Geogrpahy

See how similar organisms have migrated around the world

Anatomy

below

Homologus structures

Provide evidence of a common ancestor

Vestigial structures

remenants of sturctes found in ancestors

Analogous structures

Cannot be used, evolved to their envoirment similarly, not from a common ancestor