You notice the baseball and soccer field at school are getting torn up by gophers, but you want to know how many there are so you can capture them all. One day you go out and catch 15 to tag and release. A week later you catch 12, and 9 of them are marked. How many gophers are there in the population?

this website is for anybody really not just for girls just saying, also while a lot of males are mean and you know there are the few who are kind and then there's the nice-guys but then theirs also guys like me who are shy we don't get out much because there are people like you who exist who would most likely punch a guy in the face so next time just think about things before you post them to a website where guys and girls can see your question.

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.