Evidence of Evolution and Natural Selection

The changes of species over time

• Embryonic 
• Natural selection 
• Mimicry 
• Evolution 

The similarities of the bones in the diagram provide evidence that---

• The organisms shown lived in the same natural envionrment
• The organisms shown may have developed from a common ancestor
• The organisms shown have the same genetic diseases
• All vertebrate species have identical forelimbs

Which scientist visited the Galapagos Islands and came up with the theory of natural selection?

• Theodor Schwann

• Gregor Mendel

• Charles Darwin

• Rudolf Virchow

Why are advantageous traits more likely to be passed onto offspring?

• Because they are more likely to survive and reproduce.
• Because they come from dominant alleles.
• Because they come from recessive alleles.
• Because the trait is an acquired phenotype.

What does Darwin's theory of evolution suggest?

• species change over time
• extinct species are not related to living species
• different species can interbreed
• animals that look alike are most closely related

What is this an example of?

• Homologous structure

• Analogous structure

• Vestigial organs

• Functional adaption

How do fossils provide evidence that evolution has happened on Earth?

• Fossils show how the sizes of certain animals has changed drastically over millions of years
• Fossils show that some species have gone extinct
• Fossils show how life forms present today are different than those from the past
• Different sedimentary rock layers provide evidence for how the environment has changed over time

The theory that the Earth became what it is today through a string of natural disasters.

• gradualism

• uniformitarianism

• evolutionism

• catastrophism

a system in which individuals that have inherited beneficial adaptations produce more offspring on average than other individuals (with non-favorable adaptations) do.

• Natural Selection

• Artificial Selection

• Evolution

• Variation

The theory that land masses go through changes slowly, and over long periods of time.

• gradualism

• uniformitarianism

• evolutionism

• catastrophism