Sounds

question 124

Multiple Choice

Sounds

• A) are waves of compressed air.
• B) are detected by mechanoreceptors.
• C) may be measured, with respect to their loudness, in decibels.
• D) that vary by one decibel can be differentiated by the human ear.
• E) include all of these.

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Definitions:

Four-Chambered Heart

A heart with four compartments: two atria and two ventricles, allowing for complete separation of oxygenated and deoxygenated blood, typically seen in mammals and birds.

Nonavian Reptiles

Reptiles excluding birds, encompassing groups such as turtles, snakes, lizards, and crocodilians.

Evolved

The process through which species undergo genetic changes over generations leading to variation and potentially new species.

Semilunar Valves

Valves between the ventricles of the heart and the arteries that carry blood away from the heart; aortic and pulmonary valves.