Practice Quiz on Sponge Symmetry

Practice Quiz on Sponge Symmetry - What kind of symmetry do...

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What kind of symmetry do sponges have? Answer: Asymmetry What kind of symmetry do most animals have? Answer: Radial or bilateral symmetry What is radial symmetry? Answer: When any plane passing through an animal's center divides the animal into mirror images What is bilateral symmetry? Answer: When only the sagittal plane divides the organism into mirror images (right/left sides) What plane divides animals into dorsal/ventral surface? Answer: Frontal plane (back/belly)
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Unformatted text preview: What plane divides animals into anterior/posterior ends? Answer: Transverse plane (head/tail) Bilateral symmetry allowed for what 2 advantages? Answer: Cephalization and Greater mobility What is cephalization? Answer: Evolution of a head and brain in anterior end of animal What does the exctoderm give rise to? What region is it located in? Answer: Body coverings and nervous system, outer region of germ layer....
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  • Winter '12
  • Karn
  • Anatomy, Coronal plane, bilateral symmetry

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