Which type of scientist studies everything
from the tiniest
organisms to human
beings?

Biology

Explanation:

Biology is the study of all living beings. From the smallest algae or micro organism to the biggest living being is all covered under biology. How micro organisms live, how do they function and how they affect other living beings is studied in biology.

i wish i could but this one is weird give me abc and i can solve it.

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;