A runner of 16 kg is accelerating at 3m/s2. What is the force of the runner?

it's d. aerobic]

the answer will be a) proteins i believe

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.

answer; both surfaces of the membrane are nonpermeable