A couple want to have sexual intercourse, and they do not wish to use a behavior method as a form of birth control since they know it comes with high risk. What could be an alternative method?

A) abstinence B) withdrawal C) rhythm method D) condoms


Answer: D

Anatomy & Physiology

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Because of the presence of both activation and inactivation gates, voltage-gated Na+ channels can

a. be closed but capable of opening. b. activated. c. closed and not capable of opening. d. all of these answers. e. none of these answers.

Anatomy & Physiology

Most of the reabsorption of filtered calcium is unregulated and occurs in the ________, but an additional amount can be reabsorbed in the ________, depending on the plasma concentration of parathyroid hormone.

A. proximal convoluted tubule; descending loop of Henle B. distal convoluted tubule; medullary collecting ducts C. distal convoluted tubule; renal corpuscle D. distal convoluted tubule; proximal convoluted tubule E. proximal convoluted tubule; distal convoluted tubule

Anatomy & Physiology

The eye structure that transmits and refracts incoming light is the

A. ciliary body. B. conjunctiva. C. cornea. D. pupil. E. iris.

Anatomy & Physiology

Triglycerides and steroids are both examples of

A. essential amino acids. B. carbohydrates. C. nonessential amino acids. D. proteins. E. lipids.

Anatomy & Physiology