Question

Genus is a group of similar and related
A) Order
B) Genera
C) Families
D) Species

Answer 1

Hint:The organisms are classified on the basis of their characteristics into domain, kingdom, phylum, class, order, family, genus, and species. Further the organisms are divided into five kingdoms.

Complete answer:
To answer this question, we have to know about the classification of living organisms. Every organism is different from the other to some extent. In the very beginning the organisms are classified according to their habitat whether they live in land, water, or air. But this basis of classification has many limitations. Therefore, the classification is made on the basis of the characteristics of the species. Characteristics are the basis of classification in which some species that are similar enough are brought together in a group. Domain, kingdom, phylum, class, order, family, genus, and species are the series in which the different organisms are classified.

Remember that, the characteristics of plant body design is different from that of animals as the basis of designs are different similarly every organism is different from one another. Therefore, the hierarchy of characteristics divides the organisms into smaller groups and that is the basic unit of classification and that is species. It includes all the organisms that are similar enough to perpetuate or breed.
Now, a genus is a group of related species that are similar to one another in certain characteristics. The correlated characters are the characters that are common or similar features that are used in delimitation of different taxa. The species of one genus is varied from other species of the related genus in more than one character. All the species of a genus are thought to have evolved from a common ancestor.

Thus, the correct option is ‘D’. Species.

Note:The five kingdom classification is made on the basis of their mode or source of nutrition, cell structure, and the organization of the body of an organism. The Monera is the first kingdom in the classification which is further divided into Archaebacteria and Eubacteria.