CH 8 FIVE KINGDOM CLASSIFICATION

Linnaeus introduced the modern method of naming living organisms, called binomial nomenclature.

Ostrich

The five classes of vertebrates are: Pisces Amphibia Reptilia Aves Mammalia

Poriferans are fixed aquatic animals with numerous pores for entry of water and one large pore for its exit.

The earthworms are highly useful in agriculture because of the following:- The earthworms keep interchanging the topsoil with the lower layer thus increasing the fertility of the soil. The earthworm’s excreta is rich in nitrogenous matter which is required for plant growth. Earthworms are being used in vermiculture for producing high-quality manure. Many people use …

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There are two main rules to write scientific names are:- Scientific names are always written in the Roman script and when in print they are always in italics. When handwritten, the names of the genus and species must be underlined separately. The first letter of the genus name should Capital letter, while the species name …

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In science, people from different countries with different languages have to read about each others research work to eliminate any possible confusion in using local names by substituting them with names specially given in scientific language.

Such animals which do not have a backbone.

Such animals which have some kind of a backbone are called Vertebrata.

The plants belonging to this group bear seeds with two cotyledons.