Tetrapods have a stronger backbone

Tetrapods have a stronger backbone - Tetrapods have a...

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Tetrapods have a stronger backbone, have muscles to support the body in air, have muscle to elevate the head, have stronger shoulder and hip girdles, a more protective rib cage, modified ear structure to detect airborne sounds, foreshortening of skull and a longer snout 1. Amphibians- Eggs are deposited in water or must be kept moist Most have larval stages Ectotherms –body temperature depends on environment and restricts range Have extensive vascular nets in the skin that exchanges both oxygen and carbon dioxide At various stages they may also have external gills, lungs, gills and lungs or neither Lachrymal glands and eyelids keep eyes moist, free of dust and protected Retina contains rods and cones (cones provide frogs with color vision Sensory receptors include chemical receptors in taste buds on tongue and olfactory epithelium in nasal cavity 2. Ectothermic- body temperature derived from heat acquired from the environment Tadpole- aquatic larval stage in the life cycle of an amphibian
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Tetrapods have a stronger backbone - Tetrapods have a...

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