The healthy fitness zones (hfzs) for teenagers include which components of health-related fitness?
(choose all that apply.)
a. cardiorespiratory endurance
b. muscular endurance
c. muscular strength
d. intensity
e. flexibility

Three of the statements below are true one is false. select the statement that is false. a. a decrease in glucose levels levels triggers an increase in secretion of glucagon by the pancreas. b. high cortisol levels generally cause a decrease in gnrh secretion by the hypothalamus. c. high estrogen levels in the blood will tend to decrease secretion of lh and fsh by the anterior pituitary. d. high igf-1 levels in the blood will tend to decrease growth hormone secretion by the anterior pituitary.

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