Evidence of Evolution

Which of the fossils in the picture is the oldest?

• H

• F

• D

• C

Dating fossils and rocks based on their position to others is called:

• Homologous Structures

• Analogous Structures

• Radiometric Dating

• Relative Dating

The picture shows the forelimbs of various species. The similarities between these structures suggest...

• They are all adapted to similar environments.

• They share a common ancestor.

• Their embryonic development was the same.

• They lived at the same time in the geologic time scale.

These pictures show:

• homologous structures

• vestigial structures

• analogous structures

• embryonic structures

The Texas blind salamander has optic nerves which transmit information from the eyes to the brain, but it no longer has eyes due to its species living in dark caves over many successive generations. The optic nerves in this species are an example of

• homologous structures

• vestigial structures

• analogous structures

• embryonic structures

Put the following in order from earliest (1) to most recent (5)

• algae and bacteria evolved

• fish evolved

• humans evolved

• dinosaurs evolved

• multicellular lifeforms evolved

You find a rock sample with radioactive atoms present.  If 25% of the original radioactive atoms were present, how many half-lives has the rock been around for?

• zero
• 1
• 2
• 3

Dating fossils and rocks based on the decay of certain elements is known as:

• Homologous Structures

• Analogous Structures

• Radiometric Dating

• Relative Dating

Which of the organisms is least closely related to the others?

• Dolphin

• Lizard

• Sponge

What type of evidence is shown with the diagram above?

• Molecular

• Anatomical

• Embryological

• Fossil