Which one of these groups has the most organisms?
A. class
B. genus
C. order
D. phylum

option D) phylum

Explanation:

The linnaean system of classification from largest to smallest level is as follows:

Kingdom ---> phylum ---> class ---> order ---> family ---> genus ---> specie.

Since the phylum level consists of organisms with less similar characteristics compared to class, order and genus, we can safely say it has most organisms.

Thus, phylum is the answer.

Kingdom

Explanation:

2021

there really is life in the deepest part