Which substance is a primary source of hydrocarbons? a. cotton b. metals c. petroleum d. soil

Which of these best describes an ionic bond?

Increasing the substrate concentration in an enzymatic reaction could overcome which of the following? a) the need for a coenzymeb) allosteric inhibitionc) competitive inhibitiond) insufficient cofactors

Explain how global warming could have affected yellowstone frog and salamander habitat's, resulting in changes in the populations of these species