Which type of bond represents a weak chemical bond?
hydrogen bond
atomic bond
covalent bond
nonpolar covalent bond

Hydrogen bond

Explanation:

In the given problem, "hydrogen bond" is the correct option as the hydrogen bond is the weakest bond among the other given bonds.

Hydrogen bond is an inter-molecular bond between the molecules of hydrogen that are covalently bonded.

The strength of the hydrogen bond is around 5% of the covalent bond.

b.

hoped i

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.