Why it's important to keep your exercise intensity within your target heart rate range?

Why is it important to know the difference between stressors we can control and those we can't? a)we can neglect the effects of uncontrollable stressors and focus on the controllable ones. b) it gives us a sense of power to know that we have control over certain stressors. c)it us come up with strategies to reduce the effects of a stressor.

During the first month of development, how many layers of cells make up the embryo? a. 1 b. 2 c. 3 d. 4

Deciding how to get home is considered a routine decision