Trained athletes tend to have ________ heart rates and ________ ...

[sabina]

Trained athletes tend to have ________ heart rates and ________ stroke volumes than nonathletes at rest.
 A) higher; higher
  B) lower; lower
  C) higher; lower
  D) lower; higher
  E) similar; higher

Question 2

Which of the following statements regarding erection is false?
 A) It involves parasympathetic stimulation.
  B) Vascular channels in the erectile tissue become engorged with blood.
  C) Dilation of penile arteries occurs.
  D) It involves nitric oxide production by neurons.
  E) It is commonly the result of plaque in the blood vessels of the penis.

[kaillie]

Answer to Question 1

D

Answer to Question 2

E

[sabina]

TY

[kaillie]

You're welcome