I need help, what are the correct answers?

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.

Which day care policy would you be interested in knowing if your work let you out late sometimes? a. pick up policy b. sick policy c. vacation policy d. punishment policy

The structure shared between the male reproductive system is the