These are also known as the cartilaginous fishes. They have an endoskeleton of cartilage and are cold blooded. The placoid scales form the exoskeleton and are dermal in origin. They…
These are also known as the bony fishes. They have an endoskeleton of cartilage which occurs in the embryo form and have a bony cartilage in the adult form. They…
The lung fish is divided into different classes. These include neoceratodus, lepidosiren and protopterus. All of them have a heart which is 3 chambered. The neoceratodus is known as Australian…
The amphibians are known as the two life organisms. They are the cold blooded animals who were first to evolve. The two life organism means they can live in water…
The amphibians are divided into different orders. This includes apoda, anura and urodela. The apoda are also known as gymnophiona. They have no limbs. The scales are present. They are…
There are many differences between a frog and toad. The frog has a triangular head with olive brown color body. It is diurnal and lays eggs in masses. They do…
The reptilia are also known as creeping vertebrates. They are cold blooded. They have epidermal scales with rough and dry skin. They do not have any glands. They have 24…
There are a lot of differences between a turtle and a tortoise. The tortoises are half terrestrial and are large in size. They are mainly in fresh water form and…
There are lot of differences between a salamander and lizard. The salamander is amphibious and has moist skin. They have no scales and have 4 fingers and 5 toes. They…
The aves are also known as birds. They are bipedal and feathered. They are warm blooded. Their fore limbs are changed into wings. The heart is 4 chambered in the…
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