Bacteria cannot enter the blood from a wound in the skin as long as no bleeding is evidenced.
a. true
b. false
Ans: b. false
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You play a trick on your little brother and replace all the sugar in the sugar bowl with salt. In the morning, you find him eating a bowl full of cereal with salt on it. You realize he's eaten quite a bit of salt! Which is likely to occur?
A. Urine osmolarity would decrease. B. Atrial natriuretic factor secretion would decrease. C. Secretion of vasopressin would decrease. D. Firing by hypothalamic osmoreceptors would decrease. E. Secretion of atrial natriuretic factor would increase.
The partial pressure of carbon dioxide in the interstitial space of peripheral tissues is approximately
A) 35 mm Hg. B) 45 mm Hg. C) 55 mm Hg. D) 70 mm Hg. E) 100 mm Hg.
Homologous chromosomes make up a pair and contain genes arranged in the same or almost the same order.
a. true b. false
The ________ is a depression in the lung that allows attachment of the primary bronchi, pulmonary vessels, and other structures
A) base B) apex C) hilum D) root E) cardiac notch