Answer:
The correct answer will be option-D
Explanation:
In case the blood pressure drops in the body, the juxtaglomerular cells of the kidney start converting the prorenin into renin. This renin converts inactive angiotensin to angiotensin I which gets converted to angiotensin II by ACE enzyme.
The angiotensin II acts as vasoconstrictor narrowing the vessels and thus increasing the blood pressure. It also stimulates the secretion of aldosterone which increases the reabsorption of sodium ions and help increase the blood pressure of the blood.
Thus, option-D is the correct answer.
Answer:
Explanation:
Smaller cells, with a larger surface area to volume ratio, are more efficient for diffusing materials in and out because, as a cell grows, the volume grows faster than the surface area.
-sorry if this doesn't help-
Answer:
The carbohydrate is one of the most important nutrients needed in the diet of an athlete, as they are important to increase their performance during physical activity and exercise.
Carbohydrate is the main source of energy needed by the brain and by our body for its proper functioning. when carbohydrates are eaten up they are broken up into small sugar unit called as glucose.
These glucose unit are stored in the muscle and liver in the form of glycogen to be used as a fuel at the time of exercise and during intense physical activity. It is known to enhance the athlete performance by delaying the fatigue and help them to compete for a longer period of time.
Answer: The statement that best describes cancer cells is option D.
