Which of the following is true about Depo-Provera (DMPA)?

A. It works by stopping ovulation and thickening the cervical mucus.
B. It is used to prevent pregnancy for a period of 24 weeks.
C. It is a good birth control method for those desiring an immediate pregnancy.
D. It regularizes menstrual cycles and controls irregular bleeding.

Option A.

It works by stopping ovulation and thickening the cervical mucus.

Explanation:

Depo provera (medroxyprogesterone acetate) is a contraceptive injection that contain the hormones progestin which is used as a birth control. It stops the woman from getting pregnant by stopping ovulation and causing thickening of cervical mucus. It is an injection given every three months, it is safe and convinient for birth control.

It has some disadvantages and these include, it can cause irregular periods, it does not prevent against sexually transmitted disease, it should be stop several months before you can get pregnant e.t.c.

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.

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.