oblast becomes the: ___________________ 2. The hypoblast becomes the: ____________________ Provide the name of the structure that is where gastrulation begins in each animal model. In the case of the frog and fish, this structure is known by two different names – there is a space below to provide each name. 1. Xenopus (frog): ___________________ 2. Xenopus (frog): ____________________ 3. Zebrafish: ____________________ 4. Zebrafish: ____________________ 5. Mammals: ____________________

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Dissection

Dissection is the process of cutting up the tissue of a dead or live animal or plant, to do anatomical studies and surgical treatments. The purpose of dissection is to learn more about the overall structure of organs and organ systems and thereby understand the physiology of the organism.