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Amphibians have two layers of skin.. Some have keratin in the epidermis..

An amphibians eyes are modified for life on land. The primary light refracting surface is the cornea. Amphibians can also detect odors within the air with olfactory epithelium and through the skin they detect chemicals..

Amphibians use their eyes, not only to see but also to swallow. The tympanum is used for hearing. Frogs actually have better hearing than most humans. Chemoreceptors allow the amphibians to detect chemicals within their environment.

Amphibians use their skin to breathe.

Amphibians secrete urea from the liver.

Amphibians cb be found in swamps and creeks, etc. Swamps are wetland with miniature islands.

Amphibians have to live in damp areas because they die if their skin dries out

DIGESTIVE SYSTEM

• Stomach- breaks down food
• Liver- makes bile
• Gall bladder- stores bile
• Esophagus- tube which leads to stomach
• Small intestine absorbs nutrients

DIGESTIVE SYSTEM (CONT'D)

• Large intestine- collects wastes and absorbs water