Organisms called archaea produce methane gas from atoms of carbon and hydrogen. Which of these terms describes methane?

Compound

Element

Macromolecule

Atom

Which muscle is responsible for inhalation ?

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

Approximately percent of the energy created by cell metabolism is used by the body to carry on its normal functions, such as respiration, digestion, reproduction, muscular movement, circulation, and cellular regrowth.