3.1 Mastery Check

Front

Definition of a species

Back

A population of organisms that can interbreed and reproduce

Front

Estimated species on Earth

Back

5-30 million

Front

Endangered species: immediate extinction risk

Back

Threatened species: less risk than endangered

Front

Causes of speciation

Back

Natural selection and adaptation to environments

Front

Interspecific competition

Back

Competition within species

Front

Competitive Exclusion Principle

Back

One species dominates; the other has small populations that may relocate.

Front

Types of isolation causing speciation

Back

Behavioral, mechanical, temporal, geographic

Front

Speciation

Back

Island vs Mainland Fruit Flies