biology unit test 2

different structure similar function

• Analogous structures

• Vestigial structure

• homologous structure

A feature that was inherited but is no longer needed

• Analogous structure

• vestigial structure

• homologous structure

different function similar structure

• analogous structure

• vestigal structure

• homologous structure

when one extreme phenotype is selected for

• directional selection

• disruptive selection

• stabilizing selection

amount of different species in a population

when both extreme phenotypes are selected

• directional selection

• disruptive selection

• stabilizing selection

when the middle phenotype is selected

• directional selection

• disruptive selection

• stabilizing selection

when something is forced to get a certain trait

• artifical selection

• natural selection

trait that is chosen for an organism to survive

• artificial selection

• Nautral selection

change in something to help a organism survive in an enviornment