When you visited a zoo for your science requirement, you noticed the arrangement of animals. The left side has spiders, butterflies, worms, and dragonflies while the right side has salamanders, frogs, snakes, and lions. How do you think are these animals classified?
Choices:
A. way of reproduction

B. kind of body covering

C. presence and absence of backbone

D. kind of food that they eat and ways of getting food