Saturday, July 16, 2011

PLEASE ANSWER THE FOLLOWING QUESTION IN ORDER. FROGS AMPHIBIANS?

Frogs are not a phylum. They are part of Class Amphibia. Class Amphibia is a subset of the Phylum Chordata, so amphibians share with other chordates a notochord. Class Amphibia also shares with other vertebrates the possession of a vertebral column, and with other tetrapods the possession of 4 limbs. Frogs are part of order Anura, a subset of Amphibia. The order Anura share with each other the absence of a tail and a shortened vertebral column, 4 fingers on each hand and five toes on each leg. Members of Class Amphibia have naked skin, without any hair or feathers or scales, although some caecilians have independently evolved dermal scales. Anurans differ from other living amphibians in lacking tail and in having highly developed rear limbs that are used for hopping. They also swim differently than other amphibians, by kicking with their hindlegs, whereas most amphibians swim by flexing their bodies and tails from side to side, similar to how fish swim.

No comments:

Post a Comment