True or false? the framingham study and the two lung cancer studies are examples of retrospective cohort studies that followed large numbers of people over extended periods of time.

False

The Framingham study and the two lung cancer studies are examples of prospective cohort. Retrospective cohort studies ask people to recall the past while prospective cohort will follow them over the time. The study start from 1948 and still ongoing until now. If the study is retrospective, it should be finished long ago.

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added

the correct answer is anaphylaxis.

anaphylaxis is a condition caused by insect bites, foods, medications, manifested by tongue swelling, shortness of breath, vomiting, low blood pressure. it sometimes may occur without an obvious reason. it is treated with epinephrine injection.other tretments include antihistamines and steroids,