Biology Grade 12 Please HELP !

Parathyroid hormone (PTH) plays a significant role in calcium homeostasis in humans. A rise in PTH levels stimulates all the following except
a) the increase in absorption of calcium ions by kidney nephrons
b) the breakdown of bones and teeth to release calcium into the blood
c) the deposition of calcium into bones and teeth making them strong and healthy
d) the increase in absorption of calcium from the intestines to raise calcium levels

A thyroid gland that is secreting insufficient amounts of hormone would probably cause an individual to
a) be overactive
b) be underactive
c) have a higher rate of metabolism
d) secrete smaller amounts of TSH

The fight-or-flight response is a
a) long-term stress response regulated by mineralcoticoids
b) short-term stress response regulated by the hormone cortisol
c) short-term stress response regulated by the hormone epinephrine
d) long-term stress response regulated by the hormone ACTH

When a person eats a candy bar that has a high sugar content, under normal conditions the pancreas secretes
a) insulin, thereby decreasing the blood sugar levels
b) glucagon, thereby decreasing the blood sugar levels
c) insulin, thereby increasing the blood sugar levels
d) glucagon, thereby increasing the blood sugar levels