Which of the following are the first organisms to have a one-way digestive system? A. roundworms B.flatworms C.jellyfish D.sponges

asked Jun 19, 2022 149k views

23 votes

Which of the following are the first organisms to have a one-way digestive system?

A. roundworms
B.flatworms
C.jellyfish
D.sponges

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7 votes

Answer:

A. round worms

Step-by-step explanation:

they were the first organisms to have a one-way digestive system

Eka Putra answered Jun 24, 2022

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