Reptiles are a diverse group of cold-blooded vertebrates belonging to the class Reptilia. They are characterized by their scaly skin, which provides protection and helps prevent water loss, making them well-adapted to terrestrial environments. Reptiles lay shelled eggs on land, a key evolutionary adaptation that distinguishes them from amphibians. Their respiratory system relies on lungs, and they typically have a three-chambered heart, with some exceptions in advanced species like crocodiles. Reptiles include turtles, snakes, lizards, crocodilians, and tuataras, and they play crucial roles in ecosystems as predators, prey, and indicators of environmental health.
- Cold-blooded vertebrates in the class Reptilia.
- Scaly skin made of keratin, aiding in protection and water conservation.
- Lay shelled eggs on land; some give live birth.
- Use lungs for respiration throughout life.
- Most have a three-chambered heart; crocodilians have four chambers.
- Include turtles, snakes, lizards, crocodilians, and tuataras.
- Important ecological roles as predators, prey, and environmental indicators.
*Reptilia*
Scaly skin, shelled eggs, and lung respiration are key characteristics of reptiles.
Keratin
Lizards, snakes, and turtles are reptiles.
Conclusion
Reptiles are uniquely adapted to life on land through their scaly skin and shelled eggs, setting them apart from other vertebrates. Their diversity spans from slow-moving turtles to agile snakes, making them vital to many ecosystems.
- Reptiles are in the class Reptilia and include turtles, snakes, lizards, crocodilians, and tuataras.
- Key traits: scaly skin, shelled eggs, lung respiration, and mostly a three-chambered heart.
- They serve important ecological roles and have adaptations for terrestrial life.
Scaly skin and shelled eggs help reptiles thrive on land.
Lizards, snakes, and turtles are three main groups of reptiles.