Transitional Forms Are Seen in the Fossil Record That Link

question 13

Multiple Choice

Transitional forms are seen in the fossil record that link

• A) reptiles and birds.
• B) amphibians and reptiles.
• C) fish and amphibians.
• D) reptiles and mammals.
• E) Transitional fossils have been found in all of these groups.

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Definitions:

Cardiac Cycle

The sequence of events in the heart from the beginning of one heartbeat to the beginning of the next, including systole (contraction) and diastole (relaxation).

Ventricles

Lower chambers of the heart that receive blood from the atria and pump it to the lungs and the rest of the body.

Great Arteries

Major arteries that carry blood away from the heart to various parts of the body, notably the aorta and the pulmonary arteries.

Atria

The heart's two top chambers that take in blood from the veins and move it to the ventricles.