Placozoans are structurally simple. They have no mouth, gut, or nervous system and only a few distinct cell types. This simplicity is thought to be secondarily derived, because they have an asymmetrical adult stage. are composed of an upper and lower body surface that sandwiches a layer of contractile fibers. exhibit asexual and sexual reproduction. are sessile filter feeders. are found in tropical and subtropical oceans. O O O O O

Placozoans are structurally simple. They have no mouth, gut, or nervous system and only a few distinct cell types. This simplicity is thought to be secondarily derived, because they have an asymmetrical adult stage. are composed of an upper and lower body surface that sandwiches a layer of contractile fibers. exhibit asexual and sexual reproduction. are sessile filter feeders. are found in tropical and subtropical oceans. O O O O O

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter27: Introduction To Animal Diversity

Section: Chapter Questions

Problem 2VCQ: Figure 27.6 Which of the following statements is false? Eumetazoans have specialized tissues and...

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