Which of the following is a common characteristic of flatworms and round worms?
a) Body plan b) Body cavity
c) Digestive system d) Nervous system
Answers
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Answer:
body plan are the nervous system which is a common one of flatworns
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Answer:
digestive system
Explanation:
because both of the worm helps to nourish and increase soil fertility. by eating and secreting good nutrition
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