Answer:
To determine whether a substance is an acid or a base, count the hydrogens on each substance before and after the reaction. If the number of hydrogens has decreased that substance is the acid (donates hydrogen ions). ... Also note that the original acid turns in the conjugate base after the reaction is over.
Explanation:
Answer: Platelets release a vasoconstricting substance called <u>SEROTONIN.</u>
Primary, Secondary, Tertiary, Quaternary <span />
Continental Drift- <span>The hypothesis that continents have moved slowly to their current locations.
At one point the continents formed one large continent called Pangea. </span>