Many elements exist naturally as a diatomic molecule. This means that the element is found in nature as chemically bonded atoms. 1 2 3

15 ! come and answer! a(n) disease is caused by a pathogen and can spread among organisms. a infectious b noninfectious c toxic d contaminated

(99 points) be serious! how do farts work? how do you fart without it stinking? serious answers only

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16