Evolution of Life on Earth

Put things in some order

Relationship of one species to another

Classification organ based on phylogeny

grouping of species determined to be related because they share some distinguishing novel feature

Group that shares feature

• Many species a rise over time from common ancestor
• How adaptive radiation works
• Results in species with homologous structures

Have similar characteristic  (because of commone ancestor/inherited) but serve different purpose due to new environment

• Species with no recent ancestor evolve nearly identical structures because happen to live in same environment 
• Analogous structures

Shared characteristic due to convergent evolution (because of environment)