Answer:
It was discovered that the organisms in each of the five kingdoms have a different method of obtaining nutrients and are therefore fundamentally different.
Explanation:
New kingdoms were needed that reflected our growing knowledge of the differences between living organisms.
The answer is the Nervous system
That is the definition of Comparative anatomy. This study is focused on <span>similarities and differences in the </span>anatomy of different species. It is closely related to evolutionary biology and phylogeny which is part of the large study of the evolution of species. This study is useful because it <span>helps to determine evolutionary relationships between organisms and whether or not they share common ancestors. </span>
