ZOO exam 2

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Last updated 2:52 AM on 10/6/26
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9 Terms

1
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What is the evolutionary progression of animals?

Unicellular:Cell organelles take care of functions

Multicellular Organisms: Cells do all functions

Multicellular Organisms:Diffuse nerve net and diplomatic (2 layered (Cnidaria)

2
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Protostomia have what kind of cleavage?

Spiral cleavage

3
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Deuterostomia have what kind of cleavage?

Radial cleavage

4
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Key features of lophotrochozoa

Have either a a lophophore or a larva called trochophore larva

5
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Shared features of lophotrochozoa(3)

Prostomia, bilateral symmetry, triploblastic lophophore or trochephore larva.

6
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Advantages of being flat?(3)

Cells are not far away from outside, no respiratory or circulatory systems transporting O2/CO2 necessary, and diffusion.

7
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4 classes of flatworms

Turbellaria, Trematoda, Cestoda, Monogenea

8
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Form and function of Turbellaria

Cellular, ciliated epidermis with rhabdites.

9
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What are rhabdites?

The discharge defense that Turbellaria have. It is a mucous that is distasteful to predators.