The fact that large animals typically have lower basal metabolic rates than smaller animals can be explained by
a. their larger size which means they have more surface area for absorbing radiant energy, so they require less metabolic energy to stay warm.
b. their larger size which makes them less susceptible to predation, so they don't have to use energy to escape from predators.
c. their greater weight which makes them less inclined to move, so they expend less energy in locomotion.
d. their lower surface to volume ratio which means they lose a lesser percentage of their energy to the environment.
e. none of these.
D
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Carbonic anhydrase catalyzes a reaction that combines which of the following?
A. CO2 and O2 B. H2O and CO C. H2O and CO2 D. H2O and O2 E. H+ and HCO3-
Spongy bone
A. contains no osteocytes. B. has spaces filled with yellow marrow. C. is composed of tubular units called osteons. D. forms diploe in the cranial bones. E. All of the choices are correct.
Which abundant white blood cell is characterized by a multi-lobed nucleus and fine reddish to violet granules in the cytoplasm?
A. Monocyte B. Basophil C. Neutrophil D. Eosinophil E. Lymphocyte
When compared with the effects of blood pressure and osmolarity on fluid intake, the effects of saliva and stomach distention are
A. more immediate and more accurate. B. more immediate but less accurate. C. more long-term but less accurate. D. more long-term and more accurate.