Question 38
Animal KingdomOne primitive feature of the coelenterates is the possession of
- A.a dorsal mouth
- B.radial symmetry
- C.bilateral symmetry
- D.a false foot
Show the answer and explanation
Answer: B (radial symmetry)
Explanation
Coelenterates such as Hydra have radial symmetry, with body parts arranged around a centre. More advanced animals are bilaterally symmetrical.