2006-07-12 20:35:46 · 8 answers · asked by Anonymous in Pets ➔ Other - Pets
The word amphibia comes from two Greek words: amphi meaning of both kinds and bios meaning life. Amphibia are a class of vertebrate (back-bones) animals that can live both in water and on land. They are descended from fishes that lived more than 300 million years ago.
The first amphibia to crawl out of the water were heavily built, and slow and clumsy on land, but more active in water. They had long bodies and tails, and some developed into the highly efficient class of reptiles.
About 160 million years ago many amphibia became extinct. But a few survived to develop into the present-day frogs, newts, salamanders and the wormlike caecilians.
2006-07-12 20:37:24 · answer #1 · answered by Pyara_sweet_abhi 4 · 1⤊ 3⤋
you have already gotten the names of all of the residing communities, with some duplication (newts are salamanders). you are able to desire to record different families of anurans yet they are all referred to as someting-or-different frogs or toads. To get greater names, you may ought to flow to the fossil types, such because of the fact the labyrynthodonts or leptospondyls.
2016-12-14 07:29:56 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Because they are of cold-blooded vertebrates, intermediate in many characters between fishes and reptiles and having gilled aquatic larvae and air-breathing adults...
2006-07-13 03:51:10 · answer #3 · answered by Handsome 6 · 0⤊ 0⤋
because they can live in both water and on land
2006-07-12 20:39:48 · answer #4 · answered by dogluver8906 4 · 0⤊ 0⤋
because they can live on/in both land and water
2006-07-12 20:38:35 · answer #5 · answered by Julie 3 · 0⤊ 0⤋
http://www.4to40.com/QA/index.asp?counter=99&category=animal
2006-07-12 21:28:44 · answer #6 · answered by - Allison 6 · 0⤊ 0⤋
u need to go back to school dear!!!!
2006-07-12 20:47:37 · answer #7 · answered by be away 2 · 0⤊ 0⤋
plural?
2006-07-12 20:37:30 · answer #8 · answered by Potathao 3 · 0⤊ 0⤋