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Acoelomate is?
A solid bodied animal lacking a cavity b/t the gut and the outer body wall.
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What is Blastula?
A hollow ball of cells that marks the end of the cleavage stage during early embryonic development in animals.
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What is Cephalization?
Trend towards concentration of sensory equipment at the anterior end of the body.
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Whats Cleavage?
1)process of cytokiesis in animal cells, pinching of the plasma membrane.
2)rapid cell division without alot of growth during early embryonic development that concerts the zygote to a balll of cells.
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What is Coelomate?
Animal that has true body cavity lined by tissue.
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Ectoderm is what?
Outer most of the 3 germ layers in animal embryos.
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What is Endoderm?
Inner most of the 3 germ layers in animal embryos.
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What is Gastrulation?
series of cell and tissue movement which bastula stage embryo folds inward , producing gastrula.
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What is Larva?
Free living sexual immature form in some animal like cycles that may differ from the adult animal in morphology, nutrition, and habitat.
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What is a Mesoderm?
Middle primary germ layer in an animal embryo.
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What is Pseudocoelomate?
(p-su-do-coal-o-mate)
Animal whos body cavity is lined by tissue derived from mesoderm and endoderm.
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What is tissues?
An integrated group of cells with a common funtion, structure, or both.
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Protosomes are what?
characterized by the body cavity forming when a solid of masses of mesoderm split.
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What are Deuterostomes?
characterized by radical cleavage and body cavity forming as outpockets of mesodermal tissue.
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