Which of the following statements describes secondary productivity? - a) amount of solar energy converted to chemical energy b) amount of energy used by heterotrophs and autotrophs c) rate at which consumers convert chemical energy into biomass d) production of energy by secondary producers e) productivity rate of energy by photosynthetic organisms

explanation:

idk

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 answer is c. it will give up it's valence electron to the other atom.

cuz some people don't have enough food. that's why we need more ppl to donate food to the hungry.