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20 Cards in this Set
- Front
- Back
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Phylum echinodermata means..
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"spiny skin"
sea stars, cucumbers, urchins |
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classes within phylum echinodermata
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class asteroidea (sea stars)
class ophiuroidea (brittle stars) class echinoidea (sea urchins) class holothuroidea (sea cucumbers) |
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class asteroidea (phylum echinodermata) means..
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"star-like"
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characteristics of sea stars
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- five part radial symmetry
- aboral vs. oral sides - dioecious (separate sexes) - monomorphic (no external difference between sexes) - water-vascular system - endoskeleton |
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class ophiuroidea (phylum echinodermata) means...
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"snake-like"
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class echinoidea (phylum echinodermata) means...
a characteristic of echinoidea: |
"spiny"
- aristotle's lantern: five jaw feeding device |
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class holothuroidea (phylum echinodermata) creatures:
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sea cucumbers
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Phylum Arthropoda means...
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"jointed foot"
crustaceans, insects, spiders, shrimp |
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kinds of fish -
agnathans chondrichthyes osteichthyes differentiate. |
agnathans - without jaws; lampreys
chondrichthyes - cartilage skeletons; sharks & rays osteichthyes - bony skeletons; 98% of all fish |
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what do jaws originate from?
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gill arches
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two marine species from Order Carnivora (Class mammalia - phylum chordata)
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sea otter
polar bear |
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life span of big whales vs. killer whales vs. dolphins
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big whales - 80-150 years
killer whales - 40 years dolphins - 25 years |
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record dive of cetaceans - depth and time
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depth - 2,250 meters
time - 1 hour 22 minutes |
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record swimming speed of cetaceans
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30 mph
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record distance covered in 24 hours for cetaceans
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80+ miles
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order pinnipedia (class mammalia) meaning... and creatures, and families
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"feather foot"
seals , sea lions, walruses families: Phocidae Otariidae Odobenidae |
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Order Pinnipedia, family Phocidae
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true seals
- lack external ear - short neck - blubber layer - fur covering - hind legs cannot be brought forward |
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Order Pinnipedia, family otariidae
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sea lions
- swim via forelimbs - tiny external ear - can bring hind limbs forward and can "run" - long neck - pectoral fins (forelimbs) can support upper body in upright position |
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Order Pinnipedia, Family Odobenidae
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walruses
- live in the Arctic - males are larger - both sexes have elongated canine teeth - swim via pectoral fins - canine uses: haul out on ice finding food |
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Class Reptilia - 4 kinds of marine reptiles:
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- sea snakes - ovoviviparous
- marine iguana - turtles - salt water crocodile |
