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Vertebrate Comparison Chart. - PowerPoint PPT Presentation
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Vertebrate Comparison ChartBody Temp
Heart chambers
Outer cover
Resp. O2 and CO2
Fert. Site Embryo devel.
Young care
Fish Cold 2 Scales Gills External- in water
In water- soft eggs
None- usually
Amphibian Cold (ectothermic)
3 Moist skin with mucous
Skin and lungs
External in water
In water- soft eggs
None
Reptile Cold 3 except alligators and crocs 4
Dry skin with scales
Lungs Internal External- leathery egg- hatch
None- usually
Bird Warm (endothermic)
4 Skin with feathers
Lungs Internal External- hard shell hatch
Parents
Mammal Warm 4 Skin Lungs Internal Internal- born
Parents- long term
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