Explanation:
Meri class 8 I only have science not aquatic science
Answer:
Because sickled cells restrict blood flow, individuals can periodically experience swelling and extreme pain in any body organ or joint. This can last for hours or weeks. Sometimes permanent damage can occur to organs deprived of oxygen and nutrients
Explanation:
Red blood cells are designed to pick up oxygen in the lungs and transport it throughout the body via the circulatory system. Their donut-like shape and water-balloon-like flexibility allows them to pass through even the tiniest blood vessels.
Sickle cell anemia is a hereditary condition that causes some red blood cells to distort into rigid crescent moon shapes.
Normal red blood cells can flow freely through blood vessels. Sickled cells get stuck in the blood vessels and cause blockages.
Each enzyme is comprised of covalently linked amino acids...enzymes are proteins
Answer:
After 6 hours
Explanation:
Functions in oxygen begin to decrease after 6 hours
Answer:
I'm thinking maybe B, illustrates the principle of natural selection.
Explanation:
This example shows that, once a particular event happens in a species' ecosystem that negatively affects their lifestyle, natural selection occurs and kills off those with a disadvantageous adaptation (in this case the narrow-beaked finches, since they could no longer eat insects but did not have the beak size to crack seeds), allowing those with the advantageous adaptation (in this case, the thicker-beaked birds) to prosper.
