Hypoparathyroidism may be caused by: a. problems following surgery, an autoimmune disorder, or congenital defects b. heavy exposure to uv, systemic infections, or hypersensitivity reactions c. infection, trauma, or an autoimmune disorder d. developmental defects, a deficient diet, or exposure to toxic chemicals

The correct answer is option A

Explanation:

Hypoparaghyroidism occurs when thyroid gland produce little parathyroid hormone.

This is caused by:

1. Injury to the parathyroid glands during thyroid and neck surgery.

2. It is also caused by auto immune disorder. This is as a result when the body's natural defence against invading organisms starts to attack perfectly healthy tissues.

3. Congenital defects: This is as a result when infants are born without parathyroid tissue, that is ability to make thyroid glands or when the mother has hypoparathyroidism.

rocks and weathering-matching

as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.