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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.

Biology 2e
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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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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