Answer:
D. all of the above
Explanation:
Sending signals is what computers do like me typing which will send the computer a signal that I am writing this letter. I also, control my breathing and heart rate with my brain, the brain sends nerves through the spinal cord which makes me move and sends them to other parts of the body so they can move too. Therefore, it is just like that.
The answer is D - you are likely to develop some similirities to the people with whom you associate
The circulatory system is very useful. This system transports the food nutrients, and oxygen to the body cells. It also delivers of carbon dioxide and waste products. This helps the respiratory system by transporting nutrients to keep the lungs clean, and healthy.
