Answer:
The cardiovascular system helps maintain homeostasis by continually supplying the central nervous system--the brain and spinal cord--with oxygen and glucose. Brain cells start dying after just one minute without oxygen. The brain is the control center for all of the body's homeostatic processes.
Total magnification = objective power * eyepiece
So, m = 43 * 15 = 645
So, option B is your answer!
Hope this helps!
Answer:
Naturally occurring,inorganic substance.
Answer:
not all plants can survive the cold
Explanation:
theres types of plants that only blooms during the winter and theres plants that needs to be protected during winter by covering it with something