Question Detail
Question
Which of the following phyla consists of animals that are typically asymmetrical and lack true tissues and organs?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Phylum Porifera (Sponges) are described as non-motile (sessile), multicellular, with no true tissues/organs, and no symmetry (asymmetrical).
Hint
Think about the simplest animal forms described, particularly those lacking organized tissues.