According to this evolutionary tree, birds are LEAST related to: 

• Amphibians
• Sharks
• Ray Finned Fish
• Crocodiles

The body structures for a population of chimpanzees were stable for a long time. Then, their body structures changed, making the chimpanzees stronger. Why did this happen?

• Organisms naturally become stronger over time.

• It is impossible to say without more information.

• The chimpanzee population wanted to be stronger.

• Their environment must have changed.

What is this an example of?

• vestigial structures
• embryology
• homologous structures
• fossil record

Darwin wrote that organisms with traits that are best suited to the environment will ________________

• increase in number
  
• become extinct
  

Survival of the Fittest and Evolution were proposed by what scientist?

• Charles Darwin
• Albert Einstein
• Steven Hawking
• Isaac Newton

Where the better adapted organisms survive to pass traits along to offspring.

• Evolution
• Natural Selection
• Extinction
• Artifical Selection

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.

Mutations are a change in what?

• DNA
• tRNA
• genotype
• phenotype

Where humans have bred organisms together based on traits we like.

• Evolution
• Natural Selection
• Extinction 
• Artificial Selection

Structures with the same parts have different functions; suggests that organisms share a common ancestry

• vestigial structures
• homologous structures
• adaptive radiation
• fossil