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These are five characteristics of reptiles (I know you asked for four)
1. They are ectothermic vertebrates
2. Their skin has scales, but no hair or feathers
3. They have three-chambered hearts (except for alligators and crocodiles which have four-chambered hearts)
4. They have claws on their toes (except those who do not have legs, such as legless lizards)
5. They are the first animals, in evolution, to develop the amniotic egg. This allows reptiles to lay eggs on land.
Vocabulary:
ectothermic: Having a variable body temperature which closely matches that of the surroundings. "Cold-blooded".
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What are the basic characteristics of reptiles?
Reptiles have scaly skin
Are all dinosaurs reptiles?
All reptiles are diapsids. Mammals (like you and I) are, in contrast, synapsids. So in that respect all reptiles are alike. However, I would not say they were all alike. Snakes are reptiles but lack limbs. Alligators are also reptiles, as are lizards. Tuatara, gavials, amphisbaenids, and tortoises each represent one of the four main modern orders of reptiles. They share some characteristics--just as you and I do, but I would not say they were all alike.
What classification are lizards snakes and turtles in?
Reptiles are classified into four groups known as orders. The four reptile orders are classified as: crocodilia, sphenodontia, squamata, and testudines.
What are the four main characteristics of reptiles?
A reptile is a vertebrate with a backbone and skeleton. It is cold-blooded so it depends on warm temperatures to keep warm. Some will hibernate in winter. It lays leathery eggs on land and the babies look like small versions of the adults. A reptile has lungs to breathe with. Alligators and turtles are reptiles.
What are characteristics of reptiles?
Some characteristics of reptiles are, They have backbones or vertebrae, they are cold blooded, they have thick protective scales and lay eggs. All reptiles breathe air from their lungs. They have 3 heart chambers. Some examples include lizards, snakes, crocodiles and alligators
What are the basic characteristics of reptiles?
Reptiles have scaly skin
What are some reptiles characteristics?
they have scales
What are the four types of animals?
There are four main classes of animals: Mammals (Mammalia), Birds (Aves), Reptiles (Reptilia), and Fish (Chondrichthyes, Agnatha, Placodermi, Actinopterygii, Sarcopterygii).
What are the 4 main characters of reptiles?
what are the four main characters of reptiles
What characteristics are common to both birds and reptiles?
Lay eggs
Are birds and fish reptiles?
No. Birds, fish and reptiles are each a classification of "vertebrates" of their own. They all have quite different characteristics.
Are all dinosaurs reptiles?
All reptiles are diapsids. Mammals (like you and I) are, in contrast, synapsids. So in that respect all reptiles are alike. However, I would not say they were all alike. Snakes are reptiles but lack limbs. Alligators are also reptiles, as are lizards. Tuatara, gavials, amphisbaenids, and tortoises each represent one of the four main modern orders of reptiles. They share some characteristics--just as you and I do, but I would not say they were all alike.
Which characteristics of birds make them different from reptiles?
Birds are warm-blooded.
Which reptiles have four chambered heart?
Crocodiles, alligators, caimans and gharials all have four-chambered hearts.
What is the definition of the four-chambered heart?
Reptiles
What are the four groups in which reptiles are included?
CrocodiliaSphenodontiaSquamataTestudines
Are tortise are amphians or reptiles?
Reptiles. They are cold-blooded, have four legs, and lay amniotic eggs.
