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The most likely scenario for the evolution of all amphibia, vertebrate animals who live partly in and partly outside the water, is the following:

At some time, all vertebrates were aquatic animals, spending all of their lives submerged in water. A combination of competition, scarcity of resources and predation would have caused groups of vertebrates to adapt first to seeking out ever shallower waters, and eventually even venturing out of the waters for periods of time - for instance for mating, reproducing or food gathering. Thus ambhibia would have evolved.

Some subset of these early amphibia would then have adapted even further, spending more and more time on land, eventually leaving the water altogether. From these groups have evolved all modern land-dwelling vertebrates.

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10y ago
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14y ago

Well Frogs Only eat bugs so I guess we would have alot more bugs if we made them go extinct. And people eat frogs EEEWWWWW!!!!!

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12y ago

when a frogs habitat is destroyd,it could have died or it could have made it out alive. if they do make it out alive then they will have to move some where els. please rate my work

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13y ago

human race will get extinct.

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11y ago

theywould decrease

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Q: How could the environment be affected with the removal of frogs?
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