Tropical fish owners must keep the water in the tank getting too warm or the fish will die. why is this true?

Consider the story you just read. all but one of the choices below indicate that something is living.

Many pharmaceutical drugs are organic compounds that were originally synthesized in the laboratory. which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology

The limiting reactant(s) appeared to be