In order to gain muscle size and strength, it is necessary to
a. increase protein intake well above the RDA.
b. train intensely with adequate rest periods in between.
c. train every day at the highest intensity possible.
d. all of these
Answer: d. all of these
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The myelin sheath
a. is formed by the Schwann cell. b. speeds up the transmission of impulses. c. does not surround all nerves. d. extends from node to node. e. all of these
Which of the following might cause metabolic alkalosis?
a. diarrhea b. kidney failure c. vomiting d. increased metabolism e. decreased H+ excretion
When a person is exercising, CO2 builds up in the blood. What effect would this have on external respiration?
A) There would be increased diffusion of CO2 out of the blood and into the lungs and increased ventilation to move it out of the body. B) There would be decreased diffusion of CO2 out of the blood and into the lungs and increased ventilation to move it out of the body. C) There would be increased diffusion of CO2 out of the blood and into the lungs and decreased ventilation to move it out of the body. D) There would be decreased diffusion of CO2 out of the blood and into the lungs and decreased ventilation to move it out of the body.
Increased sebum secretion can fuel the overgrowth of the opportunistic pathogen ________ in its normal habitat, leading to disease
A) Propionibacterium acnes B) Streptococcus agalactiae C) viridians streptococci D) Mycoplasma pneumoniae E) Actinomyces