Evolution

this type of evolution happens on a small scale, typically within a single population

• microevolution

• macroevolution

• natural selection

• artificial selection

large-scale evolutionary change that takes place over long periods of time

• microevolution

• macroevolution

body parts in different organisms that have the same basic structure, but may have different functions

• analagous structures

• homologous structures

• vestigal structures

body parts in organisms that have the same functions, but have different structures

• analagous structures

• homologous structures

• vestigal structures

body parts found in living organisms that no longer serve a purpose (not necessary for the organisms survival)

• analagous structures

• homologous structures

• vestigal structures

selective pressure exerted by humans on populations in order to improve or modify particular desirable traits

• natural selection

• artificial selection

the process by which characteristics of population change over many generations as organisms with heritable traits survive and reproduce, passing their traits to offspring

• natural selection

• artificial selection

a change in a population or species over time

• Common Ancestry

• Evolution

• Embryology

• Biogeography

Organisms descended from a common ancestor. Organisms with a more recent common ancestor are more closely related. This phenomenon is referred to as?

• Evolution

• Common Ancestry

• Embryology

• Fossil Record

Two organisms that are closely related would have...

• very similar DNA sequences

• no proteins in common

• exactly the same DNA sequences

• completely different DNA sequences