The Geographic Distribution of the Mesosaurus, a Small Swimming Reptile

question 70

Multiple Choice

The geographic distribution of the Mesosaurus, a small swimming reptile that lived during the late Paleozoic, shows that the reptile lived on the southwest coast of what is now Africa and the southeast coast of what is now South America. This provides evidence that

• A) a land bridge once existed between Africa and South America.
• B) the Atlantic Ocean was once much more shallow.
• C) Africa and South America were once joined into one continent.
• D) migration between Africa and South America was once possible.
• E) the Earth was once much smaller in size.

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Definitions:

White Blood Cells

Cells of the immune system involved in protecting the body against both infectious disease and foreign invaders.

Invaders

entities or forces that enter a place or situation where they are not wanted, often causing harm or disturbance.

Eosinophils

A type of white blood cell involved in the body's immune response, particularly known for its role in fighting parasitic infections and its involvement in allergic reactions.

Regulation

Rules or directives made and maintained by an authority to control or govern behavior.