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Transcript of Animals
Reptiles are a group of cold-blooded animals which have skins covered with small hard plates called scales and lay eggs. Snakes, lizards, and crocodiles are reptiles. amphibian Amphibians are animals such as frogs and toads that can live both on land and in water. Insect An insect is a small animal that has six legs. Most insects have wings. Ants, flies, butterflies, and beetles are all insects.
Aves A bird is a creature with feathers and wings. Female birds lay eggs. Most birds can fly. Echinoderm Echinoderms are a phylum of marine animals. Echinoderms are found at every ocean depth, from the intertidal zone to the abyssal zone. Aside from the problematic Arkarua, the first definitive members of the phylum appeared near the start of the Cambrian period. Mollusca The Mollusca, common name molluscs or mollusks, is a large phylum of invertebrate animals. There are around 85,000 recognized extant species of molluscs. It is the largest marine phylum, comprising about 23% of all the named marine organisms. Numerous molluscs also live in freshwater and terrestrial habitats. Molluscs are highly diverse, not only in size and in anatomical structure, but also in behaviour and in habitat. Crustacean Crustaceans form a very large group of arthropods, usually treated as a subphylum, which includes such familiar animals as crabs, lobsters, crayfish, shrimp, krill and barnacles. Arthropoda An arthropod is an invertebrate animal having an exoskeleton, a segmented body, and jointed appendages.