Plz help me!!! due soon

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.

The nutrient facts label on a food package lists the following: iron 50%. what does this figure indicate?

Petter is a middle aged overweight man who is trying to decrease his body circumstance . how could the serving size on a neutrino label him lose weight ?