Which is a unique feature of venus? a. the thick atmosphere—made mostly of carbon dioxide—absorbs solar radiation, heating up and make the atmosphere very hot. b. it is the smallest planet and has the shortest period of revolution around the sun. c. the planet’s surface is covered with red, iron-oxide dust. d. it is the only planet with permanent liquid water on its surface.

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.

the cells uses some of the atoms of the glucose molecules to atp molecules. the atoms of the glucose molecules will then be converted into energy which will be eventually stored in atp. the energy produced which are stored in atp are coming from the glucose’s chemical bonds.