Cnidarians and flatworms lack a circulatory system. True False

Concepts of Biology
1st Edition
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:Samantha Fowler, Rebecca Roush, James Wise
Chapter15: Diversity Of Animals
Section: Chapter Questions
Problem 7RQ: Cnidocytes are found in _____. a. phylum Porifera b. phylum Nemertea c. phylum Nematoda d. phylum...
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True or False.

Cnidarians and flatworms lack a circulatory system.
True
False
Transcribed Image Text:Cnidarians and flatworms lack a circulatory system. True False
Most of the responses within vertebrates require a negative feedback
loop.
True
False
Transcribed Image Text:Most of the responses within vertebrates require a negative feedback loop. True False
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