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bio unit 10

QuestionAnswer
which eon did animals originate in? Proterozoic
ancestor of animals? choanoflagellates
characteristics of kingdom animalia eukaryotic; hetereotrophic(ingestion); multicellular; motile; lack cell walls; bodies held toegther by strictiral proteins (collagen); Regulatory genes(HOX genes); reproduce sexually
blastula hollow ball of cells in embryonic developement
gastrulation when blastula pinches in
classification of animals tissues; symmetry; development of germ layers; presence of body cavity; embryonic developement
tissues metazoan(Parazoan); eumetzoan
symmetry radial, asymmetry, bilateral
Created by: bootoo
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