Pure water has a pH level of 7, which means it is neutral on the pH scale. If you want to increase the pH of water, you must add an alkaline substance to it. The pH scale ranges from 0 to 14, with anything above 7 being alkaline, and anything below 7 being acidic.
When babies are born, their brains contain about a hundred billion of neurons. However, a few of these brain cells are connected. At age three, there are one thousand trillion connections formed. The brain starts to cut off unused connections at the age of eleven.
Cutaneous<span> receptor. The </span>cutaneous receptors<span> are the types of sensory receptor found in the dermis or epidermis. They are a part of the somatosensory system.</span>Cutaneous receptors<span> include </span>cutaneous<span> mechanoreceptors, nociceptors (pain) and thermoreceptors (temperature).</span>
They are the only cells with chloroplast
