The ____________________ are blood pressure receptors located in the carotid arteries. Fill in the blank(s) with the appropriate word(s)
ANSWER: baroreceptors
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What were the results of DNA profiling on the remains of the last czar of Russia (Czar Nicholas Romanov II) and his family? a. The daughter, Anastasia, was not among the family members
b. Both the son and one of the daughters were missing from the remains. c. None of the remains were those of the czar or his family. d. The czar himself was not among those whose remains were found. e. The czar and all of his family were accounted for in the remains.
Which of the following choices is an example of selfish herd behavior? a. A prairie dog alarm calls at the sight of a predator
b. Male sunfish try to build nests in the center of a group of nests. c. Only the dominant pair in a pack of wolves mate. d. A pride of lions defends its territory from other lions.
Diabetes insipidus is a rare metabolic disorder that can result from decreased production of ADH. Which of the following would you expect to find as a symptom of this disorder?
a. headache b. no thirst c. excessive urination d. nausea
A common hypothesis and casual assumption is that dogs originated from wolves. Because of the wide range of body sizes and shapes, other hypotheses include dog ancestry of jackals, coyotes, dingoes, or other wild dog species. In recent years, several studies have been done to clear up the lineage. One study tested the Y chromosome DNA that can only be passed down from male to male, and the other other study tested the mitochondrial DNA because
A. the mitochondrial DNA records the inherited genetics of all the male and female parents of each generation. B. the mitochondrial DNA contains genes that could code for dog size. C. the mitochondrial DNA is only passed down through females to each new generation. D. the mitochondria perform cellular respiration, providing energy to speed up the DNA analysis. E. the mitochondrial DNA is much smaller, easier, and faster to analyze for the dog lineage.