This because ice is less dense than water of particular temperature range. Water reaches its maximum density at 4 degrees. Ice is important especially for aquatic life in the polar regions. Polar bears give birth and hunt on sea ice and they need it to travel from one region to another. The ice edge in coastal areas is an important feeding ground for the walrus that uses the ice as diving platforms to feed on clams on the sea floor. Ice algae grow at the porous bottom of sea ice and form the base of the unique marine food web connected to sea ice
Cell division is known as how organisms grow and repair themselves.
For example the parent cell divides forming 2 daughter cells identical to the parent.
Answer:
Why are cells small? because they can absorb nutrients much more efficiently. Because they are smaller they can efficiently absorb enough food. When a cell doubles in size the volume increases much more then the surface area, which is why large cells cannot receive enough food efficiently for their volume.
Hope this helped :)
Explanation:
B is the right answer because none to the others sound like a real solution
<u>Answer;</u>
Sodium and potassium concentration are altered in <em><u>the kidney</u></em> in response to <u>aldosterone</u> hormone.
<em><u>Explanation</u></em>;
- <em><u>Although the sodium content of the body may be altered, its concentration in the ECF remains stable because of immediate adjustments in water volume.</u></em>
- <em><u>Aldosterone stimulates the reabsorption of sodium while enhancing potassium secretion. Therefore, When aldosterone release is inhibited, sodium reabsorption cannot occur beyond the collecting tube</u></em>.
- Aldosterone hormone is produced from the adrenal gland. the release of this hormone is stimulated by the decrease in blood pressure.
