4. Which statement best describes the relationship between the products of photosynthesis and the reactants in cellular respiration?
Answer-The products of photosynthesis serve as the reactants in cellular respiration to provide chemical energy

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.

satellites are frequently used to make observations of the orbit on earth

the dna of humans and mice is almost 92% similar. this similarity indicates that . mice have a tail, while humans have a tailbone. the tailbone is a structure in humans.yes it's true.