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.
Answer:
hair follicles are located in the epidermis and the dermis.
Soft drinks is the answer to this, where these drinks contain the most added sugar to produce its taste.
I think it might be A
I am not completely sure though