Question

how the method of animal classification changed over time

Answer 1

These organisms didn't fit into the classification system of the time. The system had to be changed to incorporate this new group or organisms. ... Changes to the classification system have meant that the classification of some species of organisms has changed too

Answer 2

These organisms didn't fit into the classification system of the time. The system had to be changed to incorporate this new group or organisms. ... Changes to the classification system have meant that the classification of some species of organisms has changed too.