A nitrogenous base, or nitrogen-containing base, is an organic molecule with a nitrogen atom that has the chemical properties of a base. The main biological function of a nitrogenous base is to bond nucleic acids together. A nitrogenous base owes its basic properties to the lone pair of electrons of a nitrogen atom.
<em>Direct </em><em>Contact</em><em> </em><em>Infection</em>
<em>Direct</em><em> contact are touching, kissing, contact with oral secretions, or contact with body lesions.</em>
<em>Hope</em><em> </em><em>it</em><em> </em><em>helps</em><em> </em><em>（⌒▽⌒）</em><em>（⌒▽⌒）</em>
Answer:
The majority of granitic magmas are formed by melting near the base of the continents. The magmas slowly rise through the crust like great balloons. They solidify near the surface to form gigantic bodies of igneous rock called plutons, which are exposed later when uplift and erosion remove the overlying rock.
Explanation:
I may be wrong but I think it’s the second one. They speed up reactions, and there’s a certain enzyme for a certain reaction.
