Question

Classification of animals is based upon all of the following except:

• A. Levels of organization
• B. Body symmetry
• C. Presence or absence of coelom
• D. Presence or absence of nervous system

Answer 1

Answer: (D)

Presence or absence of nervous system

Kingdom Animalia is divided into various phyla on the basis of:

Levels of organization - Cellular, tissue, organ, or organ system level

Symmetry - Asymmetrical, bilaterally symmetrical, or radially symmetrical.

Presence or absence of coelom or presence of pseudocoelom.

So, the correct option is option D.