Frogs have small lungs relative to their body size and they are often filled with parasitic trematodes. How can they survive without this respiratory surface? #analyze OFrogs obtain considerable oxygen through specialized rectal structures called respiratory trees Frogs are ectotherms and don't require oxygen O Frog lungs are much more efficient than those of animals with larger lungs relative to body size O Frogs obtain considerable oxygen through their moist integument

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