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cold blooded animals characterized by breathing air, producing tough-shelled amniotic eggs, and having skin covered in scales and/or scutes
Testudines (bony or cartilaginous shelled reptiles)
turtles, tortoises and terrapins (Order of reptiles, superorder Chelonia)
animals that metamorphose from a juvenile water-breathing form to an adult air-breathing form
produces eggs that develop and hatch inside the oviducts, nourishment comes from the yolk, live births (egg retention)
produces eggs that develop and receive nourishment by blood from the placenta, live births
common collecting chamber of the digestive and genitourinary tracts (from the coprodeum & urodeum)
metabolic bone disease
nutritional bone disease of reptiles (Caused by low calcium intake, low vitamin D3 intake, or excess phosphorus intake)
result of excessive protein matabolism or catabolism (causes/caused by digestive, kidney disease or dehydration)
amphibians exhibit four modalities of respiration
branchial (gill respiration), buccopharyngeal (air gulping, gular or buccal pumping), cutaneous and pulmonic
male snake anatomy
right and left testicle and a pair of hemipenes (during copulation, only one hemipenis is used)
tail-less amphibians (prefer semi aquatic environments, long rear legs, uses external fertilization)
tail-less amphibians (no teeth, prefer dryer environments, short, thick rear legs, has poison glands behind eyes, use external fertilization)
are oviparous (many salamanders- the male deposits a packet of sperm called a spermatophore onto the ground. The female then pulls it into her cloaca where fertilization occurs internally)
formation of four legs, gills are replaced by other respiratory organs, skin changes and develops glands to avoid dehydration, eyes develop eyelids and adapt to vision outside the water, An eardrum is developed to lock the middle ear, In frogs and toads, the tail disappears
reptile penis (or hemipenes)
isn't connected to the urinary tract and is strictly an organ of reproduction
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