The reactants involved in a chemical reaction are shown. how many o atoms must be present in the product thy forms from this reaction?
a.1
b.2
c.3
d.4

Which must be kept in mind when determining if an explanation is correct? check all that apply. which must be kept in mind when determining if an explanation is correct? check all that apply.

In the classification system this is a group of organisms with one or more related species

What term is applied to a scientist who studies ancient life including animal and plant fossils