What is the body's last and most complicated line of defense against infection?
a. digestive system
b. immune system
c. circulatory system
d. endocrine system
user: the diseases ringworm and athlete's foot are caused by
a. bacteria.
b. parasitic worms.
c. fungi.
d. viruses.

Alcohol is a dangerous drug because it a can change the way the mind and body function. b changes the way you look to other people. c makes you believe you are invincible. d cannot absorb into the bloodstream.

Which is one step that teens can take to advocate for food security in their communities? ask local gyms for free memberships. visit their mayors to present ideas on how to increase the availability of local yoga classes petition parks departments for walking trails. write letters to the editor of the local newspaper about a lack of full-service grocery stores.

Which criteria should andreas use when evaluating which monitor to purchase? check all that apply1. cost of monitor2. quality of monitor 3. doctor's recommendation4. whether it meets his requirements5. advertiser's claims