Progenitor cells that divide to produce another progenitor cell ...

[natalie2426]

Progenitor cells that divide to produce another progenitor cell and a migrating cell divide along a cleavage line that is _______ to the surface of the ________ zone.
 
  a. perpendicular; dorsal
 b. parallel; ventricular
 c. perpendicular; dorsolateral
 d. parallel; caudal

Question 2

Endurance activities, such as distance running, rely primarily on _________ muscles using _________ metabolism.
 
  a. fast-twitch; aerobic
 b. fast-twitch; anaerobic
 c. slow-twitch; aerobic
 d. slow-twitch; anaerobic

[wfdfwc23]

Answer to Question 1

b

Answer to Question 2

c

[natalie2426]

Thanks for the timely response, appreciate it

[sailorcrescent]

Excellent