Multiple Choice
Starting with the simplest and moving towards more complex,what is the correct evolutionary sequence of animals in regards to the complexity of their nervous systems?
A) sponges - hydras - planarians - annelids - molluscs - fish
B) sponges - planarians - hydras - annelids - molluscs - fish
C) hydras - sponges - planarians - annelids - molluscs - fish
D) sponges - hydras - planarians - molluscs - annelids - fish
E) annelids - sponges - hydras - planarians - molluscs - fish
Correct Answer:

Verified
Correct Answer:
Verified
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