A great adaptive radiation of mammals began about ____ million years ago
a. 25
b. 65
c. 95
d. 125
e. 165
ANSWER: b
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Cells found in plants and animals have similarities but can differ in function. Consider the following two organisms: a corn plant cell (Zea mays) and a camel cell (Bactrianus ferus). What is the best explanation for the difference in the cellular vacuole size between these two biotic organisms?
A. The corn cells' have a small vacuole size because it does not need long term water and electrolyte storage. B. The camel cells' have a small vacuole size because it does not need long term water and electrolyte storage. C. The camel cells' have a small vacuole size because it is not in contact with toxins that need to be removed from the cell. D. The corn cells' have a large vacuole size because it is in contact with many toxins in the soil which need to be removed from the cell.
Hepatitis B virus releases a large amount of viral antigen, which benefits the patient by
A. producing a stronger cellular immune response. B. activating antibody mediated immunity. C. making it easier to develop a vaccine. D. allowing for better treatment. E. ensuring plentiful substrate for binding with labeled antibodies in diagnostic tests.
ADH and the RAAS both increase water reabsorption, but they respond to different osmoregulatory problems. Which two of the following statements are true?
a. ADH will be released in response to a drop in blood pressure or volume, and the RAAS is most likely to respond following an accident or a severe case of diarrhea. b. ADH is released when osmoregulatory cells in the hypothalamus detect an increase in blood osmolarity, and the RAAS will decrease blood osmolarity due to the cooperative actions of renin, angiotensin II, and aldosterone. c. ADH is released when osmoregulatory cells in the hypothalamus detect an increase in blood osmolarity, and the RAAS is a response to a rise in blood pressure or volume. d. ADH is released when osmoregulatory cells in the hypothalamus detect an increase in blood osmolarity, and the RAAS is most likely to respond following an accident or a severe case of diarrhea. e. ADH will be released in response to a drop in blood pressure or volume, and the RAAS is a response to a rise in blood pressure or volume
The photosynthetic production of one molecule of glucose requires ________ molecule(s) of ATP.
A. 18 B. 12 C. 6 D. 24