Norman ate his birthday cake with lots of sugary frosting, so his pancreas secreted ________
A) thyroxin B) glycogen C) insulin D) glucagon
Answer: C
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The most stable—that is, least reactive—form of carbon is:
A. ethanol. B. diamonds. C. glucose. D. pyruvate. E. carbon dioxide.
When cells break down proteins, the main waste product is
a. acetic acid. b. phosphoric acid. c. amino acids. d. carbon dioxide. e. urea.
All of the following can pass through a healthy placenta EXCEPT which one?
A) water B) nutrients C) oxygen D) some antibodies E) blood cells
Suppose that some marine bacteria that are normally bioluminescent are NOT any more. As a result, what would the bacteria most likely be unable to do?
a. They would be unable to scare off potential predators. b. They would be unable to feed. c. They would be unable to communicate. d. They would be unable to reproduce.