The presence of hydrochloric acid in the stomach serves to ____
a. inactivate pepsinogen
b. digest fats
c. activate amylase
d. kill bacteria
e. emulsify proteins
ANSWER: d
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Most synapses found so far in the mammalian central nervous system (CNS) are classified as _____
A) chemical rather than electrical B) electrical rather than chemical C) magnetic rather than chemical D) magnetic rather than electrical
Members of the Euglenozoa move within their habitats with the aid of
A. tests. B. pseudopodia. C. cilia. D. flagella. E. pellicles.
All of the following are reproductive structures found in some fungi except
A. ascus. B. basidium. C. sporangiophore. D. mycorrhiza. E. conidia.
In a moss, most of the plants that we see are ________; in a fern, the most dominant stage is the ________
A) gametophytes; gametophyte B) gametophytes; sporophyte C) sporophytes; gametophyte D) sporophytes; sporophyte