Nearly Two-Thirds of Every Vertebrate's Body Is Composed of ________

question 15

Multiple Choice

Nearly two-thirds of every vertebrate's body is composed of ________.

• A)water
• B)carbon
• C)bones
• D)muscle

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Definitions:

Cardiac Output

The volume of blood the heart pumps through the circulatory system in one minute, a critical measure of heart function efficiency.

Blood Viscosity

A measure of the thickness and stickiness of an individual's blood, influencing how easily blood flows through the vessels.

Circadian Rhythm

The natural internal process that regulates the sleep-wake cycle and repeats roughly every 24 hours.

Core Temperature

The central temperature of the body, maintained within a narrow range necessary for optimal physiological functioning.