Problem:
Question 1: What is a tube that opens at penis (where excretory and reproductive system exit the body)?
Question 2: The endometrium thickens and becomes vascularized but is not ready for implantation?
Question 3: Part of the ovarian cycle that begins at ovulation?
Question 4: What are the hormones that regulate human, female reproductive cycle?
Please Explain don't just write the answer.