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4/17
What is the structural difference between the 2 main groups of amphibians?
4/18
What is the name of the storage chamber for urine, sperm, etc. in frogs?
4/24
How many lobes does the liver of the frog have?
4/25
How many chambers does the frog heart have?
4/27
What is the main difference between alligators and crocodiles?
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