An individual's hematocrit is dependent on his or her

A. sex.
B. altitude.
C. age.
D. All of the choices are correct.


Answer: D

Anatomy & Physiology

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Micturition is a synonym for ________

A) urinary frequency B) incontinence C) full bladder D) emptying the bladder

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Many nephrons empty into a ________

A) renal tubule B) columnar duct C) microcalyx D) collecting duct

Anatomy & Physiology

ATP is important to cellular processes because it

A. releases oxygen when high-energy phosphate bonds are broken. B. provides energy for cellular work when the terminal, high-energy bond is broken. C. is a by-product of all catabolic reactions. D. is formed by muscles contracting or whenever cellular work occurs.

Anatomy & Physiology

A myelinated nerve fiber is ______, whereas an unmyelinated nerve fiber is ______

A) gray, and composing the gray matter of the brain and spinal cord; white, and composing the white matter of the brain and spinal cord B) white, and composing the gray matter of the brain and spinal cord; red, and composing the white matter of the brain and spinal cord C) white, and composing the gray matter of the brain and spinal cord; gray, and composing the white matter of the brain and spinal cord D) white, and composing the white matter of the brain and spinal cord; gray, and composing the gray matter of the brain and spinal cord

Anatomy & Physiology