Unit 7: Evolution

Which of the following means "genetic change over time"

• natural selection
• speciation
• evolution
• fitness

What word describes the process that causes beneficial genetic mutations to survive in a species and become adaptations?

• natural selection

• adaptation

• mutation

• genetic engineering

A structure that seems to serve no purpose in an organism is called:

• dichotomous
• vestigal
• homologous
• fossilized

A characteristic that can be passed on from parent to offspring through genes is called a:

• resistance.
• genetic change.
• trait.
• selective breeding.

Structures with the same parts but have different functions and suggests that organisms share a common ancestry are:

• vestigial structures.
• homologous structures.
• fossils.
• adaptive radiation.

This image shows the development of various organisms and how they share a common ancestor because of similarities in development.  It is called:

• natural selection.
• speciation.
• evolution.
• embryology.

Which evidence of common ancestry is being studied in this visual?

• biogeography
• fossil record
• anatomical homology

Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest.

• Natural Selection

• Extinction

• Derived trait

• Artificial Selection

Which layer is the oldest?

• 1
• 2
• 3
• 4

Bats are common in Texas, especially in rocky regions. Bats with longer hang claws have demonstrated higher fitness because of their ability to cling to rock while resting.

• Adaptation
• Non-random mating
• Gene Flow
• Mutation