What is the principal extracellular electrolyte? calcium

sodium

iodine

copper

When two movable joints meet at a joint, their do not touch one another.

Which principle described by psychologist martin seligman fosters an overall positive attitude by using thinking and behavior techniques to resist negativity?

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