I think It would be B because in sounds like the best one in my opinion sorry if I am wrong
Estrogen Molecules. The three major naturally occurring estrogens in women are estrone (E1), estradiol (E2), and estriol (E3). Estradiol is the predominant estrogen during reproductive years both in terms of absolute serum levels as well as in terms of estrogenic activity.
Heterotrophs are a type of consumer, where they eat other organisms.
They obtain organic food molecules by eating other organisms.
Answer:
photosynthesis-absorption of sunlight >production of sugar
cellular respiration- apt production >breakdown of sugar