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What traits distinguish animal

What traits distinguish animal - Chapter 31 study guide...

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Chapter 31 study guide What traits distinguish animal? 1. 2. 3. Evidence for derived traits? 1. 2. What are Hox genes? What chromosome do they map on? How many clusters? Name both How did hox genes arise? What is a homeobox? What does it do? What was the ancestor of the animal clade? What are used to study differences in each clade? Where are derived traits found? 1. 2. 3. 4. 5. Patterns of first embryonic development were used to study phylogeny What are cleavage patterns? What are the patterns influnced by? Reptiles have a ____________________ clevage the diving cells form an embryo on top of a yolk mass. Sea urchins have a _______________ clevage pattern known as ______________ clevage. Lophotrochozoans have a ______________ cleavage (spiralian) Diploblastic? How many layers? Triploblastic? How many layers? Gastrulation? Blastospore? Protostomes? Deuterostomes? Body plan? 1. 2. 3. 4. Symmetry is? An animal is only symmetrical if? Spherical Symmetrey?
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Unformatted text preview: Chapter 31 study guide Radial Symmetry? Found in? Bilateral symmetry Cephalization Why is bilateral evolutionarily favored? Acoelamate? Found in? has cells called? Pseodocoelamate ? found in? Coelamate? Found in? Hydrostatic skeletons Segmentation? Appendages are? Why are they important? Some animals rely on endosymbionts for food. Sessile? Motile? Feeding strategies: 1. 2. 3. 4. 5. What are filter feeders? Motile? Sessile? Choanocytes Herbivores? Predators? Cnidarians have special stinging cells called what? Parasites? Endoparasites? Ex? Excoparasites? Ex? Life cycle? Direct development? Larva is? Dispersal stage? Trochophore? Trade offs? Ex? Bilateria? Eumatozoans? Specules? Ctenophores Mesoglea? Tenes? Cnidarians Gastrovascular cavity Chapter 31 study guide Cnidarian life cycle: Sessile polyp: Motile medusa Scyphozoans Anthozoans Hydrozoans?...
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