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13 Cards in this Set
- Front
- Back
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Mesaxonic |
Weight bearing passes through third digit (odd toed) |
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Paraxonic |
Weight bearing passes through fourth digit(even toed) |
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Hindgut (horse) |
Single chambered stomach. Fermentation occurs after digestion in an enlarged cecum and large intestine Low quality food Microbes are not digested |
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Foregut fermentation |
Multichambered stomach. Fermentation before digestion in the stomach in the specialized rumen(1st stomach chamber) High quality food Slow process rate, highly efficient energy extraction Microbes are digested |
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Bovidae (true horns/domestic cattle) |
One or more pairs of bony protrusions without branches Covered in keratin |
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Cervid (antlers/deer) |
Bony, branched. Regrow and shed used as sexual ornaments and as weapons |
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Antilocapridae(antlers/pronghorn) |
Branched Bony core and keratin sheath but shed annually |
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Rhinocerotidae(horn/rhino) |
No core or sheath Made of epidermal cells and bundle of dermal papillae |
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Giraffidae(horns/giraffe) |
Paired, short, unbranched |
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Mysticeti(baleen whales) |
Extremely large Filter food by skimming the surface and straining through comb like teeth Don't echolocate, use low frequency moans |
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Odontocei(toothed whales) |
Smaller, include dolphins, porpoises East fish and cephalopods, peg like teeth Echolocate Clicks and whistles |
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3 adaptations for low temp and heat loss in Cetaceans |
Large size- "scale effect" Insulation- blubber Countercurrent heat exchange |
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How do cetaceans deal with pressure increasing? |
Non-compressible bones and rigid upper airways |
