Answer: D. Hypothesis B is more useful because it suggests a way to test the relationship between heart rate and caffeine intake.
Hypothesis A and B both are suggesting that caffeine intake is related to higher heart rate. But hypothesis B is proving it more certainly by suggesting the affects of caffeine intake on heart rate. As, heart rate of most people will be higher 30 minutes after they drink a cup of coffee is testifying the fact, that higher heart rate is related with caffeine intake.
Therefore, hypothesis B is more useful because it suggests a way to test the relationship between heart rate and caffeine intake.
<span>The cell has 1% concentration of the salt. The external environment is highly concentrated with 25% saline solution. This will lead to release of water outside the cell, by passive diffusion from a region of high conentration of solvent to lower concentration. Thus, the cell will shrink.</span>
"These cells cause the reabsorption of bone, thus helping to regenerate bone" is the statement that <span>is correct with respect to osteoclasts. The correct option among all the options that are given in the question is the second option or option "B". I hope the answer has helped you.</span>
Mitochondria are known as the power house of the cell. They are the sites of cellular respiration that breaks down glucose into energy molecules such as ATP and energy storage molecules such as NADH and FADH2.
In this scenario, since the cell's energy levels fall and metabolism ceases, the organelle most likely affected is the mitochondria.
If mitochondria are affected, glucose will not be metabolized to ATP and the cell will not have sufficient energy for cellular functions.
