What is a control group and is it always needed in an experiment?

yes, it is always needed

Explanation:

a control group is what you choose to control in an expirement its the amount of somthing you don't change

Hope this helped

- "the acute form of diverticulitis can manifest itself with one or more severe attacks of infection and inflammation.

the inflammation of diverticulitis can eventually result in a bowel obstruction, which may cause constipation, thin stools, diarrhea, abdominal swelling or bloating, and abdominal pain."

what does the table look like