Flatworms were one of the first to develop a, which allowed them to detect light, food, and mates.

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Emma Keller

Biology

8 February, 14:52

Flatworms were one of the first to develop a, which allowed them to detect light, food, and mates.

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Landyn Cantu · Answer 1

Head

Flatworms were the one to first develop a head, which displayed a cephalic presentation. They present the cephalon which in definition were the first organisms that has had a head, or a head like structure that many organisms as of now has.