I believe it's the Intracellular Hormone Receptors
Most hormones circulate in blood, coming into contact with essentially all cells. However, a given hormone usually affects only a limited number of cells, which are called target cells. A target cell responds to a hormone because it bears receptors for the hormone.
Ependyma cells. These cells
that make up the neuroectodermal padding is responsible for the production of cerebral
spinal fluid. The cells are one type of neuroglia
cells of the central nervous system. The lining of ependyma cells of the brain also
plays a role in neuroregeneration.
Insulin regulates the amount of glucose in the body, when glucose level reach a level that is too high, Beta cells release insulin from the pancreas, then fat cells absorb the glucose from the blood stream causing the blood glucose levels to balance out.
Answer: The moon phases in order:
New moon.
Waxing Crescent.
First Quarter.
Waxing Gibbous.
Full moon.
Waning Gibbous.
Third Quarter.
Waning Crescent.
Explanation: