Evidence of Evolution Review

A(n) ____________________ is a remnant of an organ that was originally used by an ancestor.

• vestigial structure

• homologous structure

• adaptation

• fossil

Paleontology is the study of

• DNA technology.

• common ancestors.

• fossils.

• where current and past organisms can be found around the world.

Biogeography is the study of the

• different types of rocks around the world.

• environments around the world.

• age of fossils around the world.

• distribution of organisms around the world.

What is suggested by the similarity of early embryos of different species of vertebrates?

• evolution from a common ancestor

• no evolutionary relationship

• similar environments in the past

• currently undergoing natural selection

Some organisms that share a common ancestor have features that have different functions but similar structures. These are known as

• analogous structures.

• fossil structures.

• homologous structures.

• vestigial structures.

Which of the following is NOT a form of evidence Darwin used to support his theory of evolution?

• fossils

• comparison of amino acids

• biogeography

• anatomy

True or False. Vestigial structures affect the fitness of organisms that currently have them.

• True

• False

Which of the following options contains ONLY homologous structures?

• bird wings and dolphin flippers

• fish fins and dolphin flippers

• whale hip bones and human appendices

• insect wings and bird wings

What causes analogous structures to exist in different species?

• a common ancestor

• the environment

• mutations

• vestigial structures

Based on the diagram, which organism is more related to the mouse?

• baleen whale

• chicken