What is the function of yolk in eggs

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1. Define "embryology" using the broad animal life phases we talked about in lecture 1a. Why is its traditional definition not sufficient to account for all of the development of multicellular animals?

2. What is the function of yolk in eggs? Give an example of an organism with a lot of yolk in its eggs.

3. Thinking about the function of yolk in development, explain how it's possible that mammalian eggs don't contain a lot of it.

4. Give two arguments made to support the theory of preformation. Were any aspects of preformation ultimately shown to be correct?

5. Give three characteristics of a tractable model organism.

Reference no: EM132787334

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