John and mary went to the mall sentence or fragment

Which best summarizes what scientists learned about how microbes benefit the human body? they are part of a normal human ecosystem. they have become less harmful to humans than they used to be. they process nutrients, fight disease, and accommodate change. they humans overcome the effects of antibiotics.`

What was a problem faced by many newly independent african countries

Kareem saves his coins in a jar30 percent of the coins are pennis if threre are 24 pennis in the jar how many coins does kareem have