What is found in an intestinal villus?
A. Brush border
B. Peyer patches and a lacteal
C. Digestive enzymes
D. Blood capillaries and a lacteal
Answer: D
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There are three different types of cones, each one sensitive to different light energies. These cones are designated
A) red, yellow, blue. B) red, green, blue. C) red, green, yellow. D) yellow, red, blue. E) red, white, blue.
At Io, a muscle is maximally stretched so that it can develop the most tension upon contraction, because the thin filaments can slide in a maximal distance
Indicate whether the statement is true or false
Drugs known as calcium channel blockers such as nifedipine can be used to
A) decrease the force of cardiac contraction. B) increase blood pressure. C) increase the rate of cardiac contraction. D) increase the force of contractions. E) decrease afterload.
The ________ glands in the axilla become active at the time of puberty
A) ceruminous B) apocrine sweat C) merocrine sweat D) sebaceous E) axillary