Consists of cranial and spinal nerves carrying impulses to and from the brain and spinal cord
Answer: Local chemical conditions
Explanation: A Precapillary Sphincter is a smooth muscle that is located in circles around the capillaries.
The precapillary sphincter helps to coordinate blood flow to the into the capillaries by causing the capillaries to decrease the flow of blood to tissues that are dormant or not active.
Im pretty sure its c. I did that a couple of years ago...I think
Because bacteria replicates so quickly we use it for our own purposes
