What function do the cell wall and cell membrane perform in a plant cell? A.
They release energy for the cell.

B.
They make proteins for the cell.

C.
They maintain homeostasis for the cell.

D.
They create a protective boundary for the cell.

Name three methods a person can take to protect their skin from the sun. site 1

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 are the symptoms of trichomoniasis in males? a. painful urination, a dark discharge from thepenis, with no itchingb. painful urination, a dark discharge from thevagina, with no itchingc. painful urination, a clear discharge from the vagina, and some itchingd. painful urination, a clear discharge from thepenis, and some itching