The graph illustrates the relative levels of hormones in the blood over days 14-28 of the menstrual cycle. Which letter shows the hormone progesterone in a woman who is not pregnant?
Biology 0610 · IGCSE · Sex hormones in humans
Biology 0610 · IGCSE · Sex hormones in humans
The graph illustrates the relative levels of hormones in the blood over days 14-28 of the menstrual cycle. Which letter shows the hormone progesterone in a woman who is not pregnant?