At what pH does pepsin denature?
a. above 2.5
b. above 3.5
c. above 4.5
d. above 5.5
e. below 2.5
D
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Where are chondrocytes and osteocytes located?
A. In muscle B. In plasma C. In lacunae D. In bone E. In cartilage
Salivary amylase is produced by
a. parotid glands only. b. sublingual glands only. c. submandibular glands only. d. parotid glands and sublingual glands only. e. parotid glands, sublingual glands, and submandibular glands.
You are maintaining a small population of fruit flies in the laboratory by transferring the flies to a new culture bottle after each generation. After several generations, you notice that the viability of the flies has decreased greatly
Recognizing that small population size is likely to be linked to decreased viability, the best way to reverse this trend is to _____. A) cross your flies with flies from another lab B) reduce the number of flies that you transfer at each generation C) transfer only the largest flies D) change the temperature at which you rear the flies
The raw materials of science are:
A) hunches. B) theories. C) predictions. D) observations. E) hypotheses.