when classifying with dichotomous key, that belong in different groups. and have different genus's
Most scientists believe that reptiles evolved from amphibians, specifically from ancient creatures known as early reptiliomorphs. These early tetrapods adapted to a more terrestrial lifestyle, eventually giving rise to reptiles.
They are generally considered reptiles, though some think they should have their own class.
Birds, which are not just considered descendants of dinosaurs; they are dinosaurs.
Scientists believe birds evolved from dinosaurs because of several pieces of evidence, such as shared skeletal features, fossil records of "transitional" bird-like dinosaurs, and genetic similarities. These connections suggest that birds are the descendants of a group of small theropod dinosaurs.
The animals that produce eggs are called oviparous, which means they lay eggs. Examples include birds, reptiles, amphibians, and various invertebrates like insects.
Coldblooded vertebrates include the fish, the amphibians and the reptiles. There are a actually fish with lungs, lungfish. Some species of lungfish have more or less working gills, but most species need to breath using their lung(s) even when in the water. Amphibians all have a juvenile water-breathing form, no exceptions to my knowledge. Their adult form has lungs. Reptiles (crocodiles, snakes, lizards, turtles) are the group you are probably looking for. These breath using their lungs.
Lobe-finned fishes are though to have given rise to amphibians. This is due to the body plan and body symmetry of the fish, which is very similar to that of an amphibian.
Scientists believe that wormholes may exist in the universe, potentially connecting different points in space and time.
Nothing at all. A turtle is not a mammal.Turtles are reptiles (not amphibians either, as some believe). Reptiles are characterised by:being vertebrateshaving scaly skin (not scales)being cold-blooded (mammals are warm-blooded)breathing air through lungs, not gillsusually lay eggs, though some reptiles have live young
NO! Many scientists believe that dinosaurs evolved into modern day birds. In addition, some reptiles and fish were living with the dinosaurs, such as the crocodile, and have remained virtually unchanged.
i believe all amphibians do
scientists believe there are 118 different kinds of elements