Out of the circulatory system, respiratory system, muscular system, skeletal system, and nervous system, which body system do you think is the most important? List 3 reasons why you think so.

The Circulatory System is most important.

Explanation:

It is important because the circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.

the element that provides strength to the exoskeletons of clams and oysters is phosphorus. this is so because calcium carbonate is the main component in the shells.

explanation:

name and explain one of the event that occurs during meiosis that increases the variation in offspring even more than simple reproduction?