Evolution Quiz 2

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

• vestigial structures
• homologous structures
• adaptive radiation
• fossil

Study of embryos of various organisms to show a common ancestor because of similarities in development

• natural selection
• embryology
• speciation
• evolution

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

• Evolution
• Natural Selection
• Extinction
• Artifical Selection

An error in DNA copying that results in a new trait

• Homeostasis
• Mutation
• Natural Selection
• Selective Breeding

Whales are aquatic mammals that contain a pelvis (hip) bone. Even though it does not aid in its movement, the function must have been used by a common ancestor of the whale. Thus, the pelvis is referred to as a(n)

• vestigial structure

• analogous structure

• homologous structure

What type of speciation would involve mating during different seasons?

• geographic isolation

• reproductive isolation

• habitat isolation

• gametic isolation

Natural selection is

• survival of the fittest
• humans change
• two species are the same
• more animals survive

Genes that are beneficial to the species will....

• evolve a new species

• will not be passed down to its' offspring

• become more common over time

• cause the extinction of a species

When a population becomes divided by an event such as a new river forming, ____________ has occurred.

• Differentiation 
• Isolation
• Adaptation
• Separation

Organisms with the most beneficial traits will survive.  This is commonly known as ___.

• theory of evolution
• variations
  
• survival of the fittest
• ecosystems