1st -When cells are small, the movement of food and waste can be efficiently handled by the cell membrane
Similar in exponential decay 10 grams of a radioactive materials are present after a certain time period it will decayed to 5 grams now from this point the further decaying process will depend upon these 5 grams present currently
examples of natural processes showing exponential growth or decay are<span>·<span> </span></span>Population growth<span>·<span> </span></span>Bacterial growth rate<span>·<span> </span></span>Viruses growth rate<span>·<span> </span></span>Radioactive decay<span>·<span> </span></span><span>Temperature decrease</span>
Glucagon
This is a hormone that deals with blood sugar homeostasis. When blood sugar levels are low, glucagon is produced to convert the fats in the reserve back to glucose until normal levels are achieved.
Explanation:
Bone remodeling involves coordinations of osteoclasts and osteoblasts cells in the bone. The former breaks down bone tissue while the latter mineralizes bones. Calcium is the main ion in the body significant in mineralization of bone. Excess Ca2+ is stored in bone while low calcium levels in blood result in bone resorption.
Stress on a bone also causes increased mineralization to strengthen the bone against this stress. This is why astronauts when they go to space, due to less stress from low gravity, bone loses its mass. When they return back to earth, the bone readjusts to the increased stress from higher gravity by increased mineralization.
The hormone responsible for bone homeostasis is parathyroid hormone.
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I believe it's lactic acid and energy.