If two organisms are in the same phylum which other classification category must they also share ?
a. class
b. order
c. kingdom

The answer is C. The order is Kingdom, Phylum, Class, Order, Family, Genus, and Species. Some current groupings in light of present day cladistics have unequivocally surrendered the expression "kingdom", noticing that the customary kingdoms are not monophyletic.

The phylum is divides into further parts, known as classes. This is followed by order, family, genus and ultimately the species. Phylum is basically used in zoology and comes after kingdom and before classes, and are equivalent to the Divsion rank in Botany.