What is semen?

1. a combination of the hormones lh and fsh.

2. a mixture of sperm cells and other fluids.

3. a combination of sperm cells and egg cells.

4. a mixture of testosterone and other hormones.

Mucous membranes.. a. cover or line external surface of body. b. line internal body surfaces that are in contact with the environment. c. produce antibodies to combat infection. d. secrete sweat, which has antibacterial enzymes.

What angle should your knees not bend past when squatting? a. 30 degrees b. 45 degrees c. 90 degrees d. 120 degrees

What does cooper mean when she says “…non-nutrient foods are really, really cheap which is why i say it’s a social justice issue.” (7: 50 in video)