<span>D. Primates have larger, forward-facing eyes and smaller noses than most other mammals.</span>
Answer:
The correct answer is - He only tested one subject, so his conclusion is not valid.
Explanation:
In the given question there is an experiment where Joey developed medicine for curing cancer. He tested the medicine on a cancer patient but his results did not publish in the journal as the experiment is not reliable as he tested on a single subject.
The tests or experiments should have performed on different subjects to test the reliability of the results. Single-subject experiments are not trustworthy as there can be other factors or physical condition can help the subject other than medicines.
During exercise, body requires more energy, to meet energy requirement, it uses up blood sugar at a faster rate. As a result blood sugar falls. In this situation cells in the pancreas secrete hormone glucagon. Glucagon directs the liver to convert stored glycogen to sugar. This makes sugar more available in the bloodstream which causes the blood sugar to rise. Hormone Insulin and glucagon work in sync. Glucagon instructs with the liver to raise blood sugar, while insulin lowers blood sugar.
In this way the body of Claire maintains the sugar balance from breakfast until lunch.
