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9 Cards in this Set
- Front
- Back
cleavage
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succession of mitotic cell divisions without cell growth btwn division cells
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blastula
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multicellular stage where animal takes the form of a hollow ball
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gastrulation
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layers of embryonic tissues will dev. into adult body
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metamorphosis
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developmental transformation taht turns animal into a juvinile, resembling an adult but not yet sexually mature
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• True tissue-
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collections of specialized cells isolated from other tissues by membranous layers
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coelom
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fluid or air filled space separating he digestive tract from the outer body wall (coelom)
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• Pseudocoelomates-
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triploblastic animals that have a body cavity that’s formed from mesoderm and endoderm instead of just mesoderm
pseudocoelomates |
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• Acoelomates-
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triploblastic animals that lack a body cavity
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• Coelom good for_____
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body cavity is good for fluid cushions, suspending organs, helping prevent internal injury
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