DENDROLOGY

Detailed explanation-1: -The vertebrates, or members of the clade Vertebrata, are simply the animals that have these vertebrae. This includes fish, amphibians (including frogs), reptiles, birds and mammals. In sharks the vertebrae are not bony, but cartilagenous, but they are still present and sharks are also vertebrates.

Detailed explanation-2: -Amphibians are a class of cold-blooded vertebrates made up of frogs, toads, salamanders, newts, and caecilians (wormlike animals with poorly developed eyes).

Detailed explanation-3: -Amphibians are small vertebrates that need water, or a moist environment, to survive. The species in this group include frogs, toads, salamanders, and newts.