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15 Cards in this Set
- Front
- Back
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[Anthropoda: crustacea] symmetry
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bilateral
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ceolom
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well develop coelom
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germ layers and development
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3
*protostome |
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Respiratory system and pigment
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gills: for gas exchange
**respiratory pigment in plasma is hemocyanin (transport O2 and CO2) |
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Circulatory system
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open
heart--> arteries---> tissue---> sinuses---> gills--->peridial sinus---> return to heart **Sinuses for nutrient and gas exchange |
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Skeletal muscle
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chintinous exoskeleton (w/ some calcium carbonate)
*limit growth; requires molting |
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Cephalization
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yes
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nervous system
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**Extensive cephalization; double, ventral nerve cord ganglia along length of cord
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excretory system
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green gland
**filters nitrogenous waste from hemolymph and excretes at the base of the antanna |
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Sexual
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dioecious
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sex ogans in female and male
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Male: pair of three-lobed testes; va deferens, modified swimmerets
Female: pair of ovaries and oviduct |
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locomotion
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exoskeleton w/ joint appendages
**jointed legs; swimmeretss |
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skeletal
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exoskeleton; pincers
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Hexapod and Crustacean: evolve what year? are they diverse?
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evolved: 530 maya
**most diverse phylum |
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Digested system
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mouth--> esophagus---> cardiac stomach ---> gastril mill---> pyloric stomach---> intestine---> anus
**digestive gland secretes enzymes and store glygogen |
