what is a reptile?

Answer 1

a crocide is a reptile

Answer 2

A reptile is a creature that took one step further than the amphibians. They are completely self-sufficient on land and have devised ways of reducing water loss through their skin and eggs, unlike amphibians. Reptiles have a tough, waterproof skin that is usually covered with scales, scutes, or some form of keratin or bony protuberances. Unlike most amphibians, reptiles may have claws on their feet, well developed eyes, and better developed teeth. Exceptions do include the snake, blind snakes, legless lizards, etc. Amphibians and reptiles are similar in that neither have the ability to internally regulate their body temperatures and are dependent on the environment to help keep them warm. Also, reptiles typically differ from mammals structurally, in that reptiles that do walk have their legs sprawled out from the side of the body and move their backbones in an "s" curve when walking. Mammals typically have their legs tucked under their bodies and move their backbones up and down rather than side to side when moving. Also, most reptiles have a two or three chambered heart, whereas most mammals have a four-chambered heart. Other organs are typically similar but may be smaller or larger in some cases.

Scientific evidence hints that mammals and birds originated from reptiles and share many similarities, but are generally considered more "advanced."

Answer 3

Reptiles are tetrapods and amniotes, animals whose embryos are surrounded by an amniotic membrane. Today they are represented by four surviving orders:

Crocodilia (crocodiles, caimans and alligators): 23 species
Sphenodontia (tuataras from New Zealand): 2 species
Squamata (lizards, snakes and amphisbaenids ("worm-lizards")): approximately 7,900 species
Testudines (turtles): approximately 300 species
Reptiles inhabit every continent except for Antarctica, although their main distribution comprises the tropics and subtropics. Though all cellular metabolism produces some heat, most modern species of reptiles do not generate enough to maintain a constant body temperature and are thus referred to as "cold-blooded" or ectothermic (the Leatherback Sea Turtle is an exception). Instead, they rely on gathering and losing heat from the environment to regulate their internal temperature, e.g, by moving between sun and shade, or by preferential circulation — moving warmed blood into the body core, while pushing cool blood to the periphery. In their natural habitats, most species are adept at this, and can usually maintain core body temperatures within a fairly narrow range, comparable to that of mammals and birds, the two surviving groups of "warm-blooded" animals. While this lack of adequate internal heating imposes costs relative to temperature regulation through behavior, it also provides a large benefit by allowing reptiles to survive on much less food than comparably-sized mammals and birds, who burn much of their food for warmth. While warm-blooded animals move faster in general, an attacking lizard, snake or crocodile moves very quickly.

Answer 4

1. Creeping; moving on the belly, or by means of small and short legs.
2. Hence: Groveling; low; vulgar; as, a reptile race or crew; reptile vices.
3. An animal that crawls, or moves on its belly, as snakes,, or by means of small, short legs, as lizards, and the like.
4. One of the Reptilia, or one of the Amphibia.
5. A groveling or very mean person. any cold-blooded vertebrate of the class Reptilia including tortoises turtles snakes lizards alligators crocodiles and extinct forms.

Answer 5

Reptiles are tetrapods and amniotes, animals whose embryos are surrounded by an amniotic membrane. Today they are represented by four surviving

Reptiles inhabit every continent except for Antarctica, although their main distribution comprises the tropics and subtropics. Though all cellular metabolism produces some heat, most modern species of reptiles do not generate enough to maintain a constant body temperature and are thus referred to as "cold-blooded" or ectothermic (the Leatherback Sea Turtle is an exception). Instead, they rely on gathering and losing heat from the environment to regulate their internal temperature, e.g, by moving between sun and shade, or by preferential circulation — moving warmed blood into the body core, while pushing cool blood to the periphery. In their natural habitats, most species are adept at this, and can usually maintain core body temperatures within a fairly narrow range, comparable to that of mammals and birds, the two surviving groups of "warm-blooded" animals. While this lack of adequate internal heating imposes costs relative to temperature regulation through behavior, it also provides a large benefit by allowing reptiles to survive on much less food than comparably-sized mammals and birds, who burn much of their food for warmth. While warm-blooded animals move faster in general, an attacking lizard, snake or crocodile moves very quickly.

Except for a few members of the Testudines, all reptiles are covered by scales.

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 6

Quick definitions (reptile)
noun: any cold-blooded vertebrate of the class Reptilia including tortoises turtles snakes lizards alligators crocodiles and extinct forms.

Answer 7

Snakes, Crocodiles, Alligators, Lizard

Answer 8

Cold blooded animals,like snakes,alligators,crocodiles !!

Answer 9

lizard cold blooded needs heat sauce to warn up.