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20 Cards in this Set
- Front
- Back
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What is an animal?
4 characteristics |
multicellular
heterotrophic, inest eukaryotes nerve and muscle structure |
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3 types of junctions
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tight
desmosome gap |
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true tissue
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tissues are specialized for different purposes
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radial symmetrey
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jellyfish, can cut symmetry in any direction
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bilateral symmetrey
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cut down middle
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cephalization
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all senses are moved towards the front
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anterior
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head
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posterior
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rear, tail
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dorsal
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top, back
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ventral
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belly, stomach
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lateral
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sides
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coelomate and purposes
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body cavity, fluid filled seperate digestive tract from outer body wall
control environment better protect from impact and pressure |
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aceolomate
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triploblastic animal, solid bodies,
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ectoderm
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outer body covering
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endoderm
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lines diestive tube or archenteron
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diploblastic
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cnidarians and comb jellies form only two germ layers
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triploblastic
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bilateral animal, form middle layer, mesoderm
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protosome development
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spiral cleavage, planes of division or diagonal.
determinate cleavage, fate alread determined first opening at mouth, coelom at base of blastopore opening during gastrulation |
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deuterostome development
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radial cleavage
indeterminate cleavage, twins. first opening anus, coelom at top of blastopore. |
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reproduction and deveopment of animal 3 stages
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cleavage, blastula, gastrulation (produces layers of embryonic tissues) stages
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