What is the difference between an amphibian and a reptilian?

Answer 1

Well,
Reptiles have scales. Amphibians have smooth skin (although some are warty).
Reptiles are total land animals. Amphibians need the water. And yet this is not always true. There are many marine reptiles, but they must go ashore to lay their eggs, well the sea snake might be a possible exception there. There are also amphibians that are able to spend their whole lives out of the water. They are rare, but there.
The real big difference (other than scales) is that reptiles use hardshelled, amniotic eggs for their babies. All amphibians have soft jellylike eggs.

There are several anatomical (pertaining to body structure) and reproductive differences between reptiles and amphibians. Reptiles include alligators, crocodiles, turtles, and snakes. Amphibians include salamanders, toads, and frogs.

One difference between the two is the structure of their outer skin. Reptiles are covered with scales, shields, or plates, and their toes have claws. Amphibians, on the other hand, have moist, glandular skins, and their toes lack claws.

The eggs of reptiles have a thick, hard shell that protects the developing embryo from moisture loss, even on dry land. In contrast, the eggs of amphibians lack a hard outer covering and, thus, must be laid in water or in damp places.

Finally, young reptiles are miniature replicas of their parents in general appearance, although not always in coloration and pattern....

Reptiles and amphibians, along with birds, fish, and mammals, belong to a group of animals known as vertebrates. Vertebrates have a bony backbone–a strong, flexible column to which other body structures are attached. Reptiles and amphibians vary enormously in size, from tiny frogs and lizards only half an inch (1cm) long to some crocodiles and snakes that can reach lengths of nearly 30 feet

Answer 2

I beileve it is B A) Amphibians have very unefficent lungs, but supplement their oxygen by diffussing across their skin, which is why they have to live in a wet enviroment. Some species like salamanders dont have lungs at all. C) See above. Aveloi are only found in human lungs and other mammals, but deffentalty not in amphibians, very advanced structure. D) Air sacs are in birds, as it helps them maximize the ammount of oxygen from one breath when flying. Air goes through a series of chambers, so there might be two or three more breaths by the time it exits the lungs. The ammount of time it spends in the lungs is why it maximizes gas exchange, kinda like how you hold your breath. The longer you hold it, the more oxygen you use. Niether amphibians or reptiles have air sacs, only in birds.

Answer 3

Amphibians (class Amphibia; from Greek αμφις "both" and βιος "life") are a taxon of animals that include all living tetrapods (four-legged vertebrates) that do not have amniotic eggs, are ectotherms, and generally spend part of their time on land. Most amphibians do not have the adaptations to an entirely terrestrial existence found in most other modern tetrapods (amniotes). There are around 6,000 described, living species of amphibians. The study of amphibians and reptiles is known as herpetology. Amphibians are able to breathe through their skin making them very sensitive to anything they come in contact with, including human hands.

Reptiles are tetrapods and amniotes, animals whose embryos are surrounded by an amniotic membrane. Most reptile species are oviparous (egg-laying). Many species of squamates, however, are capable of giving live birth. This is achieved, either through ovoviviparity (egg retention), or viviparity (babies born without use of calcified eggs). Many of the viviparous species feed their fetuses through various forms of placenta analogous to those of mammals (Pianka & Vitt, 2003 pgs: 116-118). They often provide considerable initial care for their hatchlings.

Answer 4

Amphibians live in shallow areas and mud (between land and wetlands/seas/rivers), they can breathe through pores in the skin as well as lungs.
Reptiles crawl on their bellies and are usually much larger in size than amphibians besides they have lungs and mostly live on land.

Answer 5

Amphibians can Dive and live on the Water and can live to the Land but Reptile's can'tdo that,some of the snake and Crocodiles [Reptiles] can float to the water but can't live on the water they can drown.

Answer 6

amphibians live on land and in the water.

Answer 7

Amphibians can swim!

Answer 8

amphibians and reptiles...Beats me go to the discovery channel website.

Answer 9

Just compare frog and a komodo lizard