A substance that posses equal number of both hydrogen ions and hydroxide ions in solution is said to be neutral. They do not display properties of an acid or base solely.
The pH is said to be at around 7.
I am tempted to say that the nervous system processes the stimuli, or to be more specific, the neurons that go across our nervous system.
Is this a true or false question? if so, the answer would be false because adrenaline increases your heart rate, evolution is how things grow and change over periods of time.
Answer:
Plasma membrane is the outermost layer in cells. It separates the content of cell from their external environment. ... It controls the entry and exit of materials in nd out of cell and hence it is called selectively permeable membrane.