The popsicle you are eating starts melting. Which of the following is correct regarding the situation? The popsicle loses thermal energy and the particles speed up.
The popsicle gains thermal energy and the particles speed up.
The popsicle loses thermal energy and the particles slow down.
The popsicle is at thermal equilibrium therefore the heat transfer is equal.

equal distribution i think.

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.