What causes a teenager’s skin to break out?
poor diet
poor hygiene
a virus
hormones

2paragraphs choose one team sport and one individual sport. what are the advantages and disadvantages of having to play each of these sports in gym class?

Ineed an essay 1200words about obezity ,introduction,main causes,conclusion

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.