Which does not contain a lense

a mirror

a telescope

a microscope

eyeglasses

mirror

Explanations: A lens is a piece of a glass or other transparent substance with curved sides for concentrating , dispersing light rays used singly as in magnifying glass or with lenses therefore mirror doesn’t have lenses but telescope microscope and eyeglasses have

- "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."