7. A man sitting outside a restaurant on a park bench is smoking a cigarette while reading a newspaper. Which answer best describes the mutagen to which the man is exposed? O The newspaper
The cigarette
The oxygen he is breathing
The park bench​

What do science, technology, and disease have to do with each other?

Which of these substances does not protect against invaders in the nonspecific immune response? a. saliva b. mucus c. tears d. urine

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of