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Author Archives: Anonymous

What are choanoflagellates, and why did we discuss them in t…

What are choanoflagellates, and why did we discuss them in this course? OR Why are flatworms flat?

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Which organisms have an apical sense organ with a statocyst…

Which organisms have an apical sense organ with a statocyst for sensing position?

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Ctenophores have 2 anuses.

Ctenophores have 2 anuses.

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EXTRA CREDIT! Worth 2 points. :) Given the evidence, do you…

EXTRA CREDIT! Worth 2 points. 🙂 Given the evidence, do you think sponges or ctenophores are most likely the sister group to all other animals? Why? (hint – the “why” is the important part)

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True or false: Platyhelminthes are bilaterally symmetrical d…

True or false: Platyhelminthes are bilaterally symmetrical deuterostomes.

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Explain how a nematocyst works. Use as many correct anatomic…

Explain how a nematocyst works. Use as many correct anatomical terms as you can. OR Describe how a coral develops from a planula into a large colony.

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Pick at 3 of the cell types in Porifera and explain their fu…

Pick at 3 of the cell types in Porifera and explain their function. OR Discuss sponge chemistry. What are sponge chemicals used for and what do humans use them for?

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The flatworms were the first animals to:  (mark all that app…

The flatworms were the first animals to:  (mark all that apply)

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Charging affects backscattered electrons much more than seco…

Charging affects backscattered electrons much more than secondary electrons.

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When wanting to image a sample in cross-section, which metho…

When wanting to image a sample in cross-section, which method will provide the smoothest and flattest surface?

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