The answer is A. Morphology/anatomy is considered more
relevant than behavior or general appearance in the classification of organisms. It
is due to these anatomical features that animals such as bats are classified differently
from birds (with bats classified as mammals even though they fly like birds) due to differences in anatomical features
like milk-producing glands and brain structure.
<span>Evidence that supports this includes the lack of true tissue in sponges and the close similarity between choanocytes and choanoflagellates.</span>
