The theory that VMH is a satiety center crumbled in the face of what two lines of evidence?
What will be an ideal response?
(1) one line that showed the primary role of the hypothalamus is the regulation of energy metabolism, not the regulation of eating
(2) many of the effects of VMH lesions are not attributable to VMH damage
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When DNA replication begins, _____
a. the two DNA strands unwind from each other b. the two DNA strands condense for base transfers c. two DNA molecules bond d. old strands move to find new strands
Pepsin is an enzyme that functions in the stomach. Its optimum pH would be ____
a. between 1 and 2 b. between 3 and 4 c. above 6 d. between 5 and 7.5 e. above 8.5
Living as a member of a group may have all of the following advantages except what?
A. being more resistant to disease and parasites B. increased feeding rate C. greater protection from predators D. members learn about new food sources from other members E. more individuals scan the environment for dangers
Pasteurization is a technique in which heat is applied to liquids to kill potential agents of infection and spoilage, while at the same time retaining the liquid's flavor and food value.
a. true b. false