Compared to the cnidaria, platyhelminthes has a ______.
Select one:
A. more complex nervous system
B. more complex coelom
C. less complex nervous system
D. less complex coelom
Answer (2)
Platyhelminthes has a less complex nervous system. Platyhelminthes is a flatworm. Cnidaria (jellyfish, anemones and corals) have a relatively complex nervous system; comprising of a nerve net.
Platyhelminthes (flatworms) have a more complex nervous system compared to Cnidaria (e.g., jellyfish), as they possess a pair of cerebral ganglia functioning as a brain. Additionally, both groups lack a true coelom, but Platyhelminthes demonstrate more advanced structures. Therefore, the answer is A.
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