In 1938,scientists Found a Population of Coelacanths in the Indian

question 62

Multiple Choice

In 1938,scientists found a population of coelacanths in the Indian Ocean.This fish species is considered a "living fossil" and appears not to have changed morphologically for 80 million years.This discovery supports the ________ model of evolution.

• A)gradualism
• B)punctuated equilibrium
• C)adaptation
• D)natural selection
• E)common descent

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Definitions:

Erythrocytes

Red blood cells that carry oxygen from the lungs to the body tissues and carbon dioxide as a waste product, back to the lungs.

Thrombus

A blood clot that forms in a vessel and remains there, which can obstruct blood flow through the circulatory system.

Embolus

A blood clot, air bubble, or other substance that is carried in the bloodstream and can block blood vessels.

Immune Response

The body's defensive reaction to foreign substances, including microbes and pathogens, involving recognition and response.