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1 Complete Summary Table A.1 in the Appendix, filling in the characteristics of cnidarians in the appropriate row. 2 What specialized cells in Hydra aid in capturing and subduing prey? 3 What structures determine whether a polyp of Obelia is a feeding polyp or a reproductive polyp? 4 Speculate about the selective advantage of radial symmetry and a diffuse nerve net for sessile and free-floating animals such as sea anemones and jellyfish. 5 What modification do sea anemones possess that allows food and water to be distributed among the partitioned regions of their bodies? 6 Match the class with the correct organism or characteristic. Hydra Obelia sea anemone jellyfish no medusa form; only polyp comb jelly medusa form dominant; polyp greatly reduced both polyp and medusa forms lacks cnidocytes a. Phylum Cnidaria, class Hydrozoa b. Phylum Cnidaria, class Scyphozoa c. Phylum Cnidaria, class Anthozoa d. Phylum Ctenophora 7 Explain the difference between the proximate cause of a behavior and the ultimate cause.

1 Complete Summary Table A.1 in the Appendix, filling in the characteristics of cnidarians in the appropriate row. 2 What specialized cells in Hydra aid in capturing and subduing prey? 3 What structures determine whether a polyp of Obelia is a feeding polyp or a reproductive polyp? 4 Speculate about the selective advantage of radial symmetry and a diffuse nerve net for sessile and free-floating animals such as sea anemones and jellyfish. 5 What modification do sea anemones possess that allows food and water to be distributed among the partitioned regions of their bodies? 6 Match the class with the correct organism or characteristic. Hydra Obelia sea anemone jellyfish no medusa form; only polyp comb jelly medusa form dominant; polyp greatly reduced both polyp and medusa forms lacks cnidocytes a. Phylum Cnidaria, class Hydrozoa b. Phylum Cnidaria, class Scyphozoa c. Phylum Cnidaria, class Anthozoa d. Phylum Ctenophora 7 Explain the difference between the proximate cause of a behavior and the ultimate cause.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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1 Complete Summary Table A.1 in the Appendix, filling in the characteristics of cnidarians in the appropriate row. 2 What specialized cells in Hydra aid in capturing and subduing prey? 3 What structures determine whether a polyp of Obelia is a feeding polyp or a reproductive polyp? 4 Speculate about the selective advantage of radial symmetry and a diffuse nerve net for sessile and free-floating animals such as sea anemones and jellyfish. 5 What modification do sea anemones possess that allows food and water to be distributed among the partitioned regions of their bodies? 6 Match the class with the correct organism or characteristic. Hydra Obelia sea anemone jellyfish no medusa form; only polyp comb jelly medusa form dominant; polyp greatly reduced both polyp and medusa forms lacks cnidocytes a. Phylum Cnidaria, class Hydrozoa b. Phylum Cnidaria, class Scyphozoa c. Phylum Cnidaria, class Anthozoa d. Phylum Ctenophora 7 Explain the difference between the proximate cause of a behavior and the ultimate cause.
Transcribed Image Text:1 Complete Summary Table A.1 in the Appendix, filling in the characteristics of cnidarians in the appropriate row. 2 What specialized cells in Hydra aid in capturing and subduing prey? 3 What structures determine whether a polyp of Obelia is a feeding polyp or a reproductive polyp? 4 Speculate about the selective advantage of radial symmetry and a diffuse nerve net for sessile and free-floating animals such as sea anemones and jellyfish. 5 What modification do sea anemones possess that allows food and water to be distributed among the partitioned regions of their bodies? 6 Match the class with the correct organism or characteristic. Hydra Obelia sea anemone jellyfish no medusa form; only polyp comb jelly medusa form dominant; polyp greatly reduced both polyp and medusa forms lacks cnidocytes a. Phylum Cnidaria, class Hydrozoa b. Phylum Cnidaria, class Scyphozoa c. Phylum Cnidaria, class Anthozoa d. Phylum Ctenophora 7 Explain the difference between the proximate cause of a behavior and the ultimate cause.
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