Please help i am giving brainliest The endocrine system is made up of glands that

A. secrete enzymes that help to digest food. A. secrete enzymes that help to digest food.

B. carry oxygen to all the parts of the body. B. carry oxygen to all the parts of the body.

C. secrete hormones directly into the bloodstream. C. secrete hormones directly into the bloodstream.

D. carry nerve impulses from one part of the body to another.

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What glands secrete enzymes?

Abstract. The exocrine pancreas and certain salivary glands of mammals secrete a variety of enzymes into the gastrointestinal tract, where they digest food. The same glands also release these enzymes into the bloodstream.

Explanation:

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.