How many color cones do humans have

there are tons of tones, because of everyone being a different shade so you could just say for each person its a different shade so 3 trillion different shades

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.

not sure if this what   you'r looking for would be percent composition