Integumentary

Has granular glands
High in keratin
Has a ctenoid scale
Others have poison glands
Slime glands
Has a sand paper structure
Molting happens on the skin
Glands present helps lessen dessication and makes the body slimy
Skin functions as defense mechanism by secreting mucus or toxin, others for gas exchange
Stratified epidermis and dermis cotaining mucous and serous glands plus pigmentation cells
Modified into: keratinized scales, scutes, beaks, rattles, claws, spines
Has placoid scales with denticles
Multilayered skin with mucous and sensory cells
Dermis has air spaces needed for thermoregulation
Has very thick stratum corneum of the epidermis and lacks glands
Soft outer keratinized layer with feathers
No epidermal gland except for the uropygial gland or preen gland
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