When you begin exercising A) systolic pressure decreases. B) ...

[ericka1]

When you begin exercising
 
  A) systolic pressure decreases.
  B) capillaries close.
  C) cardiac output increases.
  D) blood vessels leading to active muscles constrict.

Question 2

Which condition can cause a forward tilt of the pelvis and an increased curvature of the lower back?
 
  A) Weak trunk flexor muscles B) Loose extensor muscles
  C) Strong abdominal muscles D) Tight hip flexor muscles

[mariahkathleeen]

Answer to Question 1

C

Answer to Question 2

D

[ericka1]

Gracias!

[amandanbreshears]

Thanks for the timely response, appreciate it