table with name of animals :- Amphibians, Taptiles and Mammals
Answers
Answer:
Amphibians:- frog,toads e.t.c
reptiles-snake lizards etc
Mammals-cow,buffalo
Answer:
Explanation:
Fishes
A whale shark (Rhincodon typus) near a snorkeller in Australia. The huge fish feed on small organisms filtered from the water and are not dangerous to humans. Scuba diver, fishes, ichthyology, fish plates, marine biology, sharks, giant fishes
whale shark
A whale shark (Rhincodon typus) and a snorkeler off the coast of Australia.
Amphibians
Amphibians evolved from fully aquatic tetrapods—(which were essentially “limbed fish”) who descended from lobe-finned fish—sometime between the Early Devonian Period (which began 419 million years ago) to the Early Pennsylvanian Subperiod (which began 323 million years ago). The name amphibian, derived from the Greek amphibious meaning “living a double life,” reflects this dual life strategy—though some species are permanent land dwellers, while other species have a completely aquatic mode of existence.
Reptiles
Male flying lizard, displying. (Draco volans) Sulawesi, Indonesia.
male flying lizard
Premaphotos/Nature Picture Library
Reptiles are air-breathing vertebrates. They have internal fertilization, amniotic development (in which the embryo develops within a set of protective extra-embryonic membranes—the amnion, chorion, and allantois), and epidermal scales covering part or all of their body. The major groups of living reptiles—the turtles, tuataras, lizards and snakes, and crocodiles account for over 8,700 species.
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Birds
Birds make up any of the 9,600 living species unique in having feathers, the major characteristic that distinguishes them from all other animals. They are warm-blooded vertebrates more related to reptiles than to mammals. They have a four-chambered heart (as do mammals), forelimbs modified into wings (a trait shared with bats), a hard-shelled egg, and keen vision. Their sense of smell is not highly developed, and their auditory range is limited.
Mammals
There are approximately 5,000 species of mammals living today. Mammals differ from other vertebrate animals in that their young are nourished with milk from special mammary glands of the mother. Mammals are distinguished by several other unique features. Hair is a typical mammalian feature, although in many whales it has disappeared except in the fetal stage. The mammalian lower jaw is hinged directly to the skull, instead of through a separate bone (the quadrate) as in all other vertebrates. A chain of three tiny bones transmits sound waves across the middle ear. A muscular diaphragm separates the heart and the lungs from the abdominal cavity. Mature red blood cells (erythrocytes) in all mammals lack a nucleus; all other vertebrates have nucleated red blood cells. The oldest known animals classified as mammals evolved near the boundary of the Triassic and Jurassic Periods, some 200 million years ago.