Download Chapter 47 Animal Development

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Chapter 47 Animal Development – Snow Day Assignment
1. Create a map showing early embryonic development in animals. Refer to Chapter
32.1 as well. You must include sperm/egg, zygote, 2 cell, 4 cell, 8 cell, blastula,
gastrula (with labeled ecoderm, mesoderm, and endoderm).
2. Create a chart explaining what the 3 embryonic germ layers are, where they first
appear, and what organs or tissues they differentiate into in adult organisms.
3. What is the neural crest and why is it important? Where and why does it form?
What do the cells of the neural crest differentiate into in adult organisms?