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Internal Animal Development

Internal Animal Development. Including humans…. Cleavage. Cleavage is: Cell division by mitosis Rapid cell division Increase in # of cells, little cell growth. MORULA. What is a Zygote?. ZYGOTE. What happens next?.

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Internal Animal Development

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  1. Internal Animal Development Including humans…

  2. Cleavage • Cleavage is: • Cell division by mitosis • Rapid cell division • Increase in # of cells, little cell growth MORULA

  3. What is a Zygote? ZYGOTE

  4. What happens next? • Cells migrate to form a hollow ball called a blastocyst (basic body plan)

  5. Stem Cells • Cells continue to divide by mitosis. • These are stem cells (not differentiated)

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