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Amphibians are small vertebrates that need water, or a moist environment, to survive. The species in this group include frogs, toads, salamanders, and newts. ... The larvae are aquatic and free-swimming—frogs and toads at this stage are called tadpoles. At a certain size, the young develop limbs and lungs.
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Answer:
200 acres because you have on tractor going 20 in 4hours you multiply by five giving you 100 and then times 2 because the hours are doubled
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Hope this helps:)
I looked it up for you and i didnt find any of those grasses ;-; but i live in florida and i feel like the most obvius one would be the florida gama grass.
Im sorry if im wrong hope this helps :)
The answer is c because boy have the same rock layer you can use they key to help you