Blood is routed through the capillary beds through the action of __________ at the metarterioles
a. epithelium
b. precapillary sphincters
c. cartilage
d. fibrous connective tissue
e. skeletal muscle
B
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Which one of the following activities would fast-twitch fibers be most useful for?
A) distance running B) swimming C) lifting weights D) biking E) cross-country skiing
Long interspersed elements (LINEs) are a type of
A. pseudogene. B. transposon. C. intron. D. exon. E. proteome.
What are the upper chambers of the heart called?
A. ventricles B. septa C. AV valves D. auricles E. atria
Which of the following is an appropriate interpretation for these graphs?
Maternal care (as measured by minutes crouching over offspring and proportion of pups retrieved) in female mice that have the fosB allele is
A. not possible to determine from the data. B. the same as the maternal care given by female mice without the fosB allele. C. less than the maternal care given by female mice without the fosB allele; however, the graphs depict only minor differences, which are most likely not significant. D. less than the maternal care given by female mice without the fosB allele. E. greater than the maternal care given by female mice without the fosB allele.