Frogs are widely distri besidesed, ranging from the tropics to subarctic regions, but their superior diversity is found in tropical rainforests.
Consisting of about 4,800 cognize species, they are among the most diverse groups of vertebrates and first appeared in the fogy record some two hundred and fifty jillion year ago. Frogs are an important part of the food fibril and the major consumer of land invertebrates. Some produce toxic secretions but despite this, many are eaten by birds, mammals, reptiles and fish. In accompaniment to their ecological importance, frogs have many cultural roles, such as in literature, symbolism and religion, and they are also valued as food for humans. Populations of some frogs are in significant decline, some species have become extinct and the number of deformities among frogs is increasing in some areas.
A distinction is often made amidst frogs and toads on the basis of their appearance but this has no systematic validity. The...If you want to get a full essay, order it on our website: Ordercustompaper.com
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