Answer:
Molecules naturally disperse from areas of higher concentration to lower concentration.
As oxygen-rich (and carbon dioxide-poor) blood travels by a cell the oxygen diffuses through the cell membrane to the area of lower concentration inside the cell. It can do this easily because the oxygen molecule (O2) is very small and has no charge or polarity. The oxygen is used up rapidly by mitochondria. This rapid consumption causes oxygen to constantly move into the cell from the blood.
The mitochondria creates carbon dioxide (CO2) as a waste product of cellular respiration (the process that makes energy for your body). Because the CO2 is of a higher concentration in the cell than in the blood passing by, this gas continually diffuses out of the cell. It too is small and uncharged so it can pass through cell membranes easily.
These movements require no energy (in the form of ATP) on behalf of the cell.
Explanation:
Answer: C. Food provides the raw materials for biosynthetic pathways that can produce sugar by a process that is the exact opposite of glycolysis.
Explanation:
Answer: Counterfeit and Forgery.
Explanation:
Over the last 30 years changes have had to be made to the paper currencies due to high rate of counterfeit bills in circulation and forgery.
To detect a Counterfeit dollar bill, the falsified portrait is lifeless and flat. Details, often too dark, do not blend into the background. The Federal Reserve and Treasury seals are simple, distinct, and sharp on a genuine bill. There may be uneven, blunt, or broken on the counterfeit seals.
<h2>Community Residents authorties prepare for an earthquake aftermath. </h2>
If we live in an area that is susceptible to earthquakes then we should follow such suggestions like store household items in a way that won’t cause injury, make sure large items are fastened to walls. Make sure not to sleep under a window and assemble emergency kits. Also if we are inside then remain in the specific position. However if, outside then use good sense and clean up any danger spots.
Answer:
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Explanation:
