Which of the following is a true difference between prokaryotic and eukaryotic cells?
a. eukaryotic cells are smaller
b. eukaryotic cells are more ancient
c. eukaryotic cells are less complex
d. eukaryotic cells have true nuclei

they both go up but then go back down. they both end lower than they started. lastly, they both are competitive/the second on.

explanation:

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.