What are the functions of thyroid and parathyroid glands?

What can friends provide to affect mental health positively? a)peer pressureb)challengesc)conflictd)companionship

Which of the following is not a fitness benefit of cycling a: very effective at burning fat b: provides an upper body workout c: provides an aerobic workout d: good exercise for out of shape people

Astairway has 6 steps. is it a handrail required? a. a handrail is required b. a handrail is not required c. double handrails are required d. only nosing is required