Which of these statements about sexually transmitted infections is false?
A) Chlamydia is caused by bacteria that can often be asymptomatic or bring on a wide variety of symptoms.
B) Gonorrhea is caused by a bacterium that can bring on painful discharges in males.
C) Syphilis is caused by a virus that may lead to death if untreated.
D) Genital herpes is caused by a virus that may cause intermittent lesions.
C) Syphilis is caused by a virus that may lead to death if untreated.
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Which cells resemble basophils and are found in connective tissue, close to small blood vessels?
A. Dendritic cells B. Mast cells C. NK cells D. Alveolar macrophages E. Cytokines
Which of the following is NOT a disorder of water balance?
A) hypotonic hydration, in which sodium content is normal but water content is high B) excessive hydration due to excess atrial natriuretic peptide (ANP) secretion C) edema or tissue swelling, which is usually due to an increased capillary hydrostatic pressure D) excess water in interstitial spaces due to a low level of plasma proteins
Which if the following is NOT TRUE about goat nutrition?
a. Goats chew cud. c. Goats require copper in their diet. b. Goats are very selective eaters. d. Goats can not eat cherry tree leaves.
A surface chemical that prevents microbial growth is
A. histamine. B. leukotriene. C. sebum. D. kinin. E. interferon.