Glands produce a lipid-rich substance that contains proteins and minerals and protects the skin.
sweat
mammary
sebaceous
endocrine

The correct answer is option sebaceous glands.

Explanation:

The dermis layer has two glands sweat and sebaceous glands. Sebaceous glands are associated with skin hair follicles and produce a lipid-rich substance having minerals and proteins.

Sebaceous glands also assist the skin to inhibit or protect from microbial growth due to the presence of some fatty acid and lipids.

Thus, the correct answer is option - sebaceous glands.

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.

1. what is the relationship between the shape of an enzyme and the reactions they catalyze?

2. how does an enzyme inhibitor work?

separate your answers so i dont get confused : )