Coronary vessels supply blood to heart muscles ..blockage in them will cause hypoxia in heart muscles which leads to heart attack
The plant uses this energy to power a protein pump that can pump hydrogen ions back into the lumen of the thylakoid against the concentration gradient in order to ... Without the ATP, the Calvin Cycle will not be able to produce sugar.
External exchange of gases
The Arctic fox is specifically made to survive extreme cold weathers, it has a very thick fur coat that keeps it very warm. Also, Arctic foxes change the color of their fur with the seasons. In winter they are white to blend in with the snow, while in the summer they change to brown. Hope this helps.
