Evolution Review

When a dairy farmer only breeds cows that give the most milk, he is following the principle of

• natural selection
• acquired characteristics
• artificial selection
• descent with modification 

Structures that no longer serve a purpose or function in the modern organism are called

• fossils 
• acquired triats
• natural selection 
• vestigial structures 

Inducing mutations in a population 

• decreases genetic variation 
• is a method of cloning
• results in organisms with similar traits
• increases genetic variation 

Flippers of whales and wings of birds are examples of 

• vestigial organs
• embryos 
• analogous structures
• homologous structures 

Individuals best suited to their environment survive and reproduce. This idea is known as

• survival of the fittest
• struggle for existence 
• descent with modification
• common descent 

What condition would increase the struggle for existence experienced by a population?

• increase in food supply
• increase in habitat size
• increase in birth rate
• all of these options

The process by which populations change over time is known as

• evolution 
• diversity
• unity
• descent 

The process in which the environment determines which individuals pass on their traits is

• artificial selection
• natural selection
• evolution
• independent selection 

What does it mean for an organism to have high fitness?

• it can survive & reproduce in its environment 
• it can survive in any environment 
• it is really strong
• it will develop beneficial traits

The study of where an organism lives now & where they and their ancestors lived in the past

• biogeography
• natural selection
• geography 
• genetics