'Animal pole' presentation slideshows

Chapter 47

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Chapter 47

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Cleavage and Gastrulation - Sea Urchin and Frog

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Animal Development

Animal Development. Preformation. How does an egg become an animal? Until the end of the 18 th century, the prevailing theory was that the embryo was a miniature infant. This idea of preformation also included the thought that each embryo contained all of the descendents as smaller embryos.

811 views • 39 slides

Animal Growth and Development

Animal Growth and Development. What is the Different between Growth and Development??. Introduction to animal development. Animal Development. Development requires both cell growth and cell differentiation (different cells express different genes). How are new organisms produced?.

415 views • 31 slides

Cleavage is the first phase of embryonic development

Cleavage is the first phase of embryonic development. What is cleavage?. Cleavage is a rapid series of mitotic divisions that occur just after fertilization. There are two critical reasons why cleavage is so important:

1.3k views • 30 slides

Chapter 8 - Early Development in invertebrates

Chapter 8 - Early Development in invertebrates. The next chapters examine early development in several models, including invertebrates (Ch. 8-9) amphibians (ch 10) and then vertebrates (ch. 11). 1 frog egg becomes ______ cells in __ hours!. Fig. 8.1. General Animal Development.

539 views • 23 slides

Animal Development Chapter 47

389 views • 10 slides