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slava [35]
3 years ago
14

HELP BIOLOGY QUESTION:

Biology
1 answer:
marissa [1.9K]3 years ago
5 0

Flatworms (apart from the turbellarians, (planarians are in the class turbellaria)) are parasitic and don't need complex nervous systems. A parasitic animal devotes much of itself to reproduction and doesn't worry about other tasks. Cestodes don't even have a gut, they absorb food via diffusion through their skin. Annelids are free-living animals, and they need to move around more. They don't spend their adult life hooked to the inside of an animal, they move around, and need a more complex nervous system to give them a better view of their world.

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Answer:

C

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3 years ago
Plz answer You will get 26 points!
zzz [600]

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Their Diversity and number will be greatly diminished.

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