The blood in veins is d. traveling to the heart.

b. moving in single file.

a. leaving the lungs.

c. carrying oxygen.

The nursing instructor has been observing nursing students initiate an iv infusion. which action(s), if made by the nursing student, indicates that further instruction is needed? (select all that apply.) the nursing student:

What organ systems are working to you cool down after a workout?

In the practice of science, this type of reasoning is used to develop explanations.