The respiratory system works to get essential materials to the cells when we breathe it takes the carbon dioxide from the alveoli ( air pockets in our lungs) and replacing it with oxygen. The circulatory system takes consists of veins which carries oxygenated blood from the entire body to the heart, and arteries which takes deoxygenated blood away from the heart to the lungs. Finally the digestive system works to get essential materials to the cells when we eat the vitamins, minerals and nutrients not only go to certain organs but also through the blood and the cycle starts all over again.
Hm. I believe it may be false but I may be incorrect.
Sample answer: I personally eat many yellow fruits and vegetables to help lower my risk of cancer but, I should incorporate more green fruits and vegetables because it is very good for your eyes to keep in good condition.
Which statement BEST describes common communicable diseases?
A. Most communicable diseases are either bacterial or viral and infect the respiratory tract.
