In capillary exchange, osmosis takes place ____
a. at the arterial end
b. along the entire length of the capillary
c. at the venous end
d. in the middle part of the capillary
e. osmosis does not take place in capillary exchange
ANSWER: c
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Which of the following statements concerning the relationship of energy expenditure to body size in animals is TRUE?
A. Large endotherms have higher mass-specific metabolic rates (O2/g tissue/hour) than small endotherms. B. Large ectotherms have lower mass-specific metabolic rates than small ectotherms. C. There is an inverse (i.e., negative) relationship between the TOTAL energy used by an animal and its body size. D. Only endotherms show an inverse relationship between specific metabolic rate and body size. E. Only ectotherms show an inverse relationship between specific metabolic rate and body size.
The concentration of the United States auto industry in and around Detroit, MI is an example of a(n)
A) localization economy. B) external economy. C) ancillary activity. D) regional economy.
____________________________________ contain the same genes at the same locations.
A) Sex chromosomes B) Autosomes C) Gametes D) Homologous chromosomes
Which is true of carbohydrates?
A. They may be part of the structure of bacteria. B. They may serve as a source of food. C. They contain carbon, hydrogen, and oxygen in a 1:2:1 ratio. D. They may be bonded to proteins to form glycoproteins. E. All of the choices are correct.