ADH controls how diluted or concentrated urine is by controlling the permeability of the collecting ducts to reabsorption of water. The antiduretic hormone(ADH) is secreted by the hypothalamus and pitutary glands. When there is less water in the blood, secretion of ADH increases and hence increasing reabsorption of water. This also applies vice versa.
A is direct variation because the line does not curve and x and y are in a direct ratio
You can also spray easy-off oven cleaner but you have to wear gloves because it can burn your skin leave it for about 15 to 20 mins rinse it and bam your shower head is clean.
The process by which eggs are made is called Fertilization, when the egg cell meets the sperm cell and form a zygote.