The circulatory system is system in the human body that provides a network through which our blood flows constantly.The human cardiovascular system is considered closed because there are no holes for blood to enter or leave the system. Correct answer: D
In the closed circulatory system the blood stays confined within the vessels and heart.
The immediate physical effects of abuse or neglect (bruises or cuts) can be relatively minor or severe (broken bones, bleeding or even death). In some cases the physical effects are temporary, but it is not necessary to reduce the pain and pain caused by a child.
Glucose is a simple carbohydrate