Species are considered as:
Correct answer: A. Real basic units of classification
- A. Real basic units of classification
- B. The highest units of classification
- C. Artificial concept of human mind which cannot be defined in absolute terms
- D. Real units of classification devised by taxonomists
Explanation
Species are a natural population or group of natural populations of individuals that are genetically distinct and reproductively isolated with similar essential morphological traits. Species is also a genetically closed system because its members do not interbreed with members of other species. Species are the lowest or basic taxonomic category, e.g., mango (Mangifera indica), potato (Solanum tuberosum), lion (Panthera leo). Hereindica, tuberosum, and Leo are species of genera Mangifera, Solanum, and Pantera respectively. All other taxonomic categories are defined and described about species. For example, a genus is a group of species, and a subspecies or a variety is a part of a species. New species originate from already existing species. Species is considered a basic unit of taxonomy since in the greater majority of cases we do not have intraspecific names.
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About Biodiversity and Variety of Life
Biological classification uses taxonomic ranks, binomial nomenclature and shared characteristics to organize life into kingdoms. The major groups include prokaryotes, protists, fungi, plants and animals, with comparisons based on cell type, cell wall, nutrition, body organization, reproduction and evolutionary relationships; prokaryotes lack a membrane-bound nucleus.
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