What are the differences between mammals, amphibians and reptiles? Please don't write nonsense as if you write nonsense I mark you spam
Answers
Amphibians
Amphibians lay their eggs in water, have an aquatic larval stage involving gills, and have semi-permeable skins that act as secondary respiratory surfaces. Some small salamanders and frogs don't even have lungs, and their skin is their only source of oxygen. They first evolved about 370 million years ago.
Reptiles
Reptiles are amniocenteses, meaning they lay eggs with a hard shell containing the yolk and the white, or amniotic structures. They can be oviparous, meaning they lay their eggs and they hatch outside the mother's body, or viviparous, meaning they gestate their young within the mother's body. They do not have an aquatic larval stage. They first evolved 315 million years ago.
Mammals
Mammals have fur, 3 bones in the middle ear, and feed their young with milk produced by their bodies. They are endothermic, meaning they can control their own body temperatures. They have a neocortex in the brain. They are amniocenteses as well, and bear their young alive. Mammals first appeared about 225 million years ago.
Answer:
mammals animals which can live in both land and water. Ex tortoise and turtles.
amphibians, they animals which live in water only. ex fishes .
reptiles are small animals . ex lizard