D
According to ncbi the most abundant mineral in the human body makes up about 1.5 to 2% of total body weight, I think that answers your question
7. C
8. B
9. B
Hope this helps!
Answer:
The digestive system is responsible for taking whole foods and turning them into energy and nutrients to allow the body to function, grow, and repair itself.
Explanation:
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.
