Which hormone is secreted by the ovaries to prepare the uterus for pregnancy?

What triggers the onset of menstruation?

Which hormone is essential for maintaining early pregnancy before the placenta forms?

Which hormone is converted into dihydrotestosterone (DHT) in some tissues?

Which part of the placenta is derived from fetal tissue?

You are the parent in charge of providing team snacks/beverages for the soccer game this weekend for your 13 year old’s team. What foods and beverages would you supply and why? 

What happens to sperm that are not ejaculated?

What structure in the ovaries secretes relaxin?

Which follicular structure contains the glycoprotein layer called the zona pellucida?

Which hormone is responsible for regulating the body’s biological clock?