Ok... This is a bit complicated but bear with me. In a female's body Estrogen and Progesterone are two of the major used to maintain the menstruation cycle. Gonadotrophic substances are an entirely different topic with it being the hormones FSH and LH (These hormones are released while an egg is in development in the ovaries).
Without going into even deeper specifics. Estrogen is used by the body signal to ovulate, as well as thicken the uterine walls... Progesterone is used to maintain the uterine walls "after" the egg is fertilized. What the pill is suppose to do is actually force a premature ovulation, which is why there is estrogen. The Progesterone's job as is maintain the uterine wall's endometrium to a low level and helps keep blood loss from a period at a minimum.
If you need clarification please feel free to question.
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Where low tide occurs?
Low tides occur between two high tide areas. They form 90 degree angles with the moon.
Where high tide occurs?
Parts of the earth when facing the moon, those parts experience the pull force, cause high tides. They occur in the areas closest to and farthest from the moon.
How often high tide occurs?
Hide tides occur twice a day. Coastal areas experience high tides every 12 hours.
The bones that make up our arms are pretty similar to those of a turkey's wings. ... We can tell tibiae are homologous in humans, monkeys, tortoises, and turkeys because they always connect with the upper leg bone (femur) and the bones of the foot, and similar muscles connect them to other bones.
viruses i think again sorry if this is wrong
Answer:
commensalism is the answer