Living things need water in their cells. Water is the universal solvent - most of the chemicals a cell needs is dissolved and transported in water. Water is an environment where chemical reactions can occur and water is needed in many of those reactions - like the hydrolysis reaction (needed in the break down of food molecules). If a cell becomes dehydrated chemical reactions slow down. Chemical balance of the cell is changed as waste materials are not removed fast enough, food is not broken down, etc. Water also helps regulate the heat that can build up in a cell during chemical reactions. A dehydrated cell = increase in cell temp. Water content of a cell also affects the pH of a cell environment. Certain reactions occur better at certain pH. Homeostasis is maintaining a balance with the the environment. Without water the balance is upset.
<span>Answer to your question is D.Avoid situations where drugs are present. Person seeing drugs around them will make them to use drugs. he/she will desire to take drugs. because human nature is arranged that way. when you see something you want it. For example when you see a good bag or car, you have a desire to own it. so in this case One of the most effective strategies for resisting drugs is simply to avoid situations where drugs are present</span>
I think it would be D. because look at your palm about i would say
Answer:
it depends on what you're doing
Explanation:
physical activity can be simply walking down the hall or picking up a remote while exercise is intentionally wanting to burn calories
