Explain the nature of the relationship between blood glucose levels and hunger and satiety.
What will be an ideal response?
Evidence suggests that the intention to start eating triggers the decline in blood glucose. Four relevant observations:
(1) the time course of the glucose decline is not consistent with the idea that it reflects a gradual decline in the body's energy - it occurs suddenly just before eating begins
(2) eliminating the premeal drop in blood glucose does not eliminate the meal
(3) if an expected meal is not served, blood glucose soon returns to its previous level
(4) the glucose levels in the extracellular fluid that surround CNS neurons stay relatively constant, even when blood glucose levels drop
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Indicate whether the statement is true or false.
The membrane-attack complex is a group of proteins that supplements the inflammatory response
a. True b. False Indicate whether the statement is true or false
Male hummingbirds flash a patch of iridescent feathers on their neck called the gorget. This behavior makes them very visible. Why advertise their presence to a predator?
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Phytoplankton consists of tiny animals that swim through ocean water
a. true b. false