Snakes
Fish, amphibians, reptiles, birds and mammals. Fish are ecothermic, aquatic vertebrates. Amphibians and reptiles are ectothermic vertebrates. Birds and mammals are endothermic vertebrates.
ecothermic
Reptiles and amphibians are the vertebrates that have three-chamber hearts.
Vertebrates
They're not vertebrates - they're invertebrates - because they have no internal skeleton.
That is actually not true. The vast majority of animals, including vertebrates and invertebrates, are insects. All insects live on land. As for vertebrates, three of the seven classes are types of fish, and fish species equal the number of terrestrial vertebrate species, at approximately 32,000 types of fish compared with 10,000 reptiles, 10,000 birds, 5,000 mammals, and 7,000 amphibians.
All fish are vertebrates.
All dinosaurs are vertebrates.
birds dum one
They are Ecothermic so their temp. depends on their surroundings
Well there are four Mammals, Fish, Amphibians, and Reptiles
There are various types of terrestrial animals, including mammals, birds, reptiles, amphibians, and insects. Mammals are warm-blooded vertebrates that give birth to live young and nurse them with milk. Birds are warm-blooded vertebrates with feathers and lay eggs. Reptiles are cold-blooded vertebrates with scales or scutes. Amphibians are cold-blooded vertebrates that typically begin life in water and then transition to land. Insects are invertebrates with six legs and a three-part body.