What can be said about nephrons?
A) Their large surface area enables them to act as filters.
B) Their large surface area inhibits their function.
C) Several tiny nephrons have the surface area the size of one large nephron.
D) None of the above
A
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What is the mode of secretion of sebaceous glands?
A. Merocrine B. Apocrine C. Holocrine D. Endocrine E. Xerocytosis
Which of the following is a characteristic of a covalent bond?
A) The molecule is always polar B) Electrons are shared C) Protons are involved in the bond D) Electrons are donated
Osteoporosis occurs with greatest frequency in postmenopausal women because of the associated withdrawal of bone-preserving estrogen
a. True b. False Indicate whether the statement is true or false
Choose the statement that does NOT correctly describe the function of the corresponding sensory receptor.
A. Your heart rate increases as baroreceptors in your aorta detect low blood pressure. B. An ice cube feels very cold as thermoreceptors in your fingers detect its temperature. C. You feel searing pain as nociceptors in your skin respond to cell lysis and death from a spider bite. D. Your car appears blue as proprioceptors in your eyes detect light of 420nm wavelength reflecting from it.