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A tadpole is a herbivore or carnivore? herbivore T or F A tadpole breathes with lungs False (gills) How many chambers are in a frogs heart? three What structure holds insects securely once they are caught? vomerine teeth Which structure allows air to enter and leave the mouth cavity? internal and external nares Which structure leads to the Eustachian tubes tympanum All amphibians lack- scales Young amphibians are like fish in that they breath with gills adult amphibians eat carnivorous Frogs and toads differ from salamanders in that salamanders have tails amphibians found in the garden are probably toads Blood carried from the body to the heart is oxygen poor Dividing wall between the atrium septum The frog heart has two atria and one ventricle Because amphibians are cold-blooded they may hibernate its enlarged "thumb" allows the male frog to assist the female in expelling eggs during mating Solid waste, urine, sperm are all found in a temporary storage cloaca Third eyelid of the frog nictitating membrane "Apoda" means without legs amphibians without legs caecilians In a frog's digestive system, food passes from the stomach to the small intestine The circulatory system of an adult amphibian has a double loop blood returning from most of the body (Oxygen poor) collects in the rt. atrium Oxygen rich blood from the lungs enters the left atrium another name for the tympanic membrane is eardrum