An epidemiological study that looks at the relationship between sugar intake and blood pressure is an example of which type of epidemiology

If bacteria are much too small to see, what is one reason why can we see colonies in the petri dishes that have plenty of food to eat after only a few days?

Nephrons, the functional unit of kidneys, are responsible for formation of urine. the sentences describe situations that are the result of problems in the urine formation process. for the nephron shown below, match each situation to the step in the urine formation process where the problem lies.

Which organ controls breathing? lungs alveoli heart diaphragm