Term
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Definition
| most free-living; planktonic or benthic; some commensal and some parasitic; mostly freshwater, some marine |
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Term
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Definition
| posses pseudocoel(fluid); exhibit eutely(fixed number of cells); triploblastic |
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Term
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Definition
| epidermis syncytial w/fixed number of nuclei; contains cuticle of glycoproteins for protection/shape. No specialized circulatory or repiratory systems (diffusion) |
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Term
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Definition
| ciliated Corona(crown of cilia) brings food in; suspension feeders. ciliated food grooves b/w bands of cilia |
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Term
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Definition
| mouth->mastax(muscular swelling;contains trophi(hard parts, shred food))->esophugus->stomach(gastric glands)->cloaca(digestive, repro, excretory systems empty into cloaca)->anus |
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Term
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Definition
| circular(around body);longitudinal(length of body);retractor (attached to body wall and organs; associated w/internal organs); Pseudocoel acts as hydrostatic skeleton |
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Term
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Definition
| ciliary movement; temporary attachment; looping; some sedentary (live in tubes) |
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Term
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Definition
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Term
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Definition
| photo receptors(eye spots); chemo receptors; mechano receptors |
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Term
| Excretion and osmoregulation? |
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Definition
| 2 protonephridia in pseudocoel |
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Term
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Definition
| sexual; asexual via pathenogenisis(unfert egg-> develops->juvenile) |
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