codes for a specific trait
I hope this help and I will try again if it is wrong.
You haven't specified if which type of cell you are referring to. There are many types of cells and each cell would have different reactions when immersed in a beaker of distilled water. So let us take for example, the red blood cell. A distilled water is hypotonic compared to the solution contained within the cells' membranes. Therefore, t<span>he distilled water will diffuse into the red blood cells and cause them to burst. Hope this answers the question.</span>

In humans, the medulla region of the brain is mainly responsible for the regulation process of respiration. It is also called the respiratory rhythm centre. The chemosensitive area located near the respiratory centre sends signals across nerve impulses to alter the rate of expiration to eliminate compounds.
Because if you don’t you may die or get seriously hurt. Or just the investigation will go wrong and get unclear or wrong answers
Frontal lobe because its where decisions are made and behaviors are choices (in most cases).