Artery carries it to the lung. Artery - lung. Always a good thing to remember.
B. False. Maintaining an unhealthy weight would cause stress on the body, but maintaining a healthy weight does not.
this is called acquired immunity
I believe the correct answer is B because you obviously need to see if the person is still alive or not. I'm having second thoughts that it might be A.. I'm not sure which. Hopefully you get it right
