Unlike cnidarians and platyhelminths, round worms have a(n) A. one-way digestive tract. B. single-opening digestive tract. C. re
productive structures. D. bilaterally symmetrical body plan.
2 answers:
The answer is A the platyhelminths has a one way digestive tract
Unlike cnidarians and platyhelminths, round worms have an one-way digestive tract.
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