These changes can<span> be caused by environmental factors such as ultraviolet radiation from the sun, or</span>can<span> occur if an error is made as </span>DNA<span> copies itself during cell division. Acquired </span>mutations<span> in somatic cells (cells other than sperm and egg cells) cannot be passed to the next generation.</span>
The sun gives energy to a hawk because everything the hawk ate got its energy from the sun, so like yea... hopefully i helped cuz it was hard to explain
Answer:
Alcoholic fermentation deals with the production of ethanol from pyruvate.
Explanation:
During fermentation the end product of glycolysis known as pyruvate undergoes reduction to generate acetaldehyde by the catalytic activity of pyruvate decarboxylase enzyme which removes one carbon atom from pyruvate thus leading to the formation of acetaldehyde. In this reaction NAD+ is regenerated by the oxidation of NADH.
The acetaldehyde that is formed from pyruvate undergo further reduction to form ethanol by the activity of alcohol dehydrogenase enzyme.NAD+ is also regenerated in this reaction.
<span>The cells that are on each side of the stomatal pore and open and close
it like a mouth is called <u>guard cells</u>. Guard cells are found almost all
over the body part of the plant. The opening and closing of the stomata acts as
a mediator by changes in turgor pressure of the guard cells. Turgor pressure
pushes and sometimes out of the cell wall of the plant to allow ions of
solution to come in and out. The stomatal pore of the guard cell becomes large
when water is present around it and it is small when water is not present. </span>
