What is the role of the lysosome in intracellular digestion?
a. absorption
b. enzymatic digestion
c. filtration
d. mechanical digestion
e. energy production
ANSWER: b
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The most common etiologic agent of community-acquired pneumonia in adults older than 30 years of age is ___ pneumoniae
a. Mycoplasma b. Chlamydophila c. Streptococcus d. Klebsiella
Along with lipids, the skin of amniotes is filled with ____ to help prevent water loss
a. squalene b. bone c. keratin d. collagen e. albumin
Antioxidant-rich foods are typically
a. low in fat and high in fiber. b. high in fat and low in fiber. c. high in sugars and low in fat. d. high in fiber and high in fat. e. low in sugars and high in fiber.
Blood from the ____________________ returns to the heart through the pulmonary veins. Fill in the blank(s) with the appropriate word(s)