Which of the following is an activity that a student can participate in at school and temporarily avoid vigorous aerobic activity?
a. basketball
b. volleyball
c. yoga
d. soccer

Me d: which system contains the heart, blood, and blood vessels? a. muscular b. circulatory c. respiratory d. digestive which system contains the pituitary, adrenal, and thyroid glands? a. respiratory b. circulatory c. endocrine d. reproductive

Which of these is a sexual stereotype?

Which is not a physical sign of stress? a )pupils dilate b) breathing becomes faster and deeper c) kidneys and liver constrict d) spending money