define Kingdom, phylum, class,order,family, genus, and species in biology
Answers
☛ It is a group of file or division which have few common characters .
☛ Example : Kingdom animalia include all organisms that lack cell wall and chlorophyll .
☛ Indian plant includes all organisms having rigid cell wall made up of cellulose and contain chlorophyll .
☛ it is a group of related animal classes .
☛ Example : chordata includes classes like species amphibians etc .
☛ A class is a group of related orders that exhibit similarities in few characters .
☛ An order is a group of related families that exhibits Similarities in broad features among themselves .
☛ A family is a group of related genera that exhibit similarities among the individuals of various genera but mere differences among its species .
☛ Genus is a group of closely related species that exhibit similarities in broad features of their organisations but different in details .
☛ Species occupies a key position in taxonomy by representing high degree of similarity among the individuals of species .
☛ Species is a group of actual breeding populations that are reproductively isolated from other related groups .
Answer:
i) Phylum is a taxonomical hierarchy below Kingdom and above Class. It is a taxon with one or more classes organisms with similar characters.
ii) Class is a taxonomical hierarchy higher than Order and lower than Phylum. Class includes related to orders of the organisms. Example: Presence of notochord in mammals.
iii) Family has a group of related genera with still less number of similarities as compared to genus and species. Example: Fox and dog belongs to the same family. It is a group of entities below Order and above Genus.
iv) Order is a taxon below higher than Family and lower than class. Order being a higher category is the assemblage of families which exhibit a few similar characters.
v) Genus comprises a group of related species which has more characters in common in comparison to species of other genera. Ex:Lion, tiger and leopard are classified under genus Panthera. It is above species and below Family.