they may come like who is the father of a particular subject, chemical formulaes, nobel prize winners , bhart ratna /Oscar awardees, in biology you can mainly refer tosense organs or other body partslike eyes, ears,nose ( sense organs ) mainly neuron system.
in ears stapes is the smallest bone which is an important point.like this you can gather information. you can get more information from
hope it helps...............
if you want further information feel free to message me because I have written these exams already.
plz mark as the best!!!!!!!!!!!!