Why do plants have different rates of photosynthesis

The synthesis of various chemicals (i.e water, glucose, etc.)1 vary in the structures of the plant, mostly in cellular respiration and structure, but also the synthesis of ATP in the mitochondria

the offspring would all be white. if the parents are both white flowers then they have the genotype rr, which when crossed results in an all white punnet square.

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.