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प्रश्न
Define a taxon. What is meant by taxonomic hierarchy. Give a flow diagram from the lowest to highest category for a plant and an animal. What happens to the number of individuals and number of shared characters as we go up the taxonomical hierarchy?
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उत्तर
A taxon is a level of biological taxonomy, such as phylum, order, family, and so on.
Taxonomic Hierarchy: Distinct taxa have different levels in taxonomy. This means that a specific taxon will only appear after another specific taxon. Species, for example, always come after the genus and never the other way around.
Plant Categories Flow Chart
Kingdom→Division→Class→Order→Family→Genus→Species
Flow Chart of Animal Categories
Kingdom→Phylum→Class→Order→Family→Genus→Species
The common characteristics decrease as we progress up the taxonomic ladder. All members of a species, for example, will have the greatest amount of common traits. All members of a genus, on the other hand, will have a smaller number of common characters. The number of individuals increases as we go up the taxonomic hierarchy.
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संबंधित प्रश्न
Can you identify the correct sequence of taxonomical categories?
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Fixed animals with a pore-bearing body:
Name one example of the animal which shows the following characteristics:
Star-shaped body:
Observe the figure and answer the questions given below.
a) To which phylum these organisms belong?
b) Name the substance with which their body is covered.
c) Name their organs of locomotion.
Identify my class/phylum and give one example of it:
I have mammary glands and exoskeletons in the form of hair.
Corals are
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Spongilla, Sea anemone, Planaria, Liver fluke Wuchereria, Ascaris, Nereis, Earthworm, Scorpion, Birds, Fishes, Horse.
Fill in the boxes given in Fig. 7.2 with appropriate characteristics/plant group (s)
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Paired and jointed legs are seen in phylum ______.
In the system of classification, which one of the following is NOT a category?
As we go from species to kingdom in a taxonomic hierarchy, the number of common characteristics ______.
Which of the following ‘suffixes’ used for units of classification in plants indicates a taxonomic category of ‘family’?
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| Column I | Column II |
| A. Family | i. Tuberosum |
| B. Kingdom | ii. Polymoniales |
| C. Order | iii. Solanum |
| D. Species | iv. Plantae |
| E. Genus | v. Solanacea |
International Code of Botanical Nomenclature (ICBN) has provided a code for classification of plants. Give hierarchy of units of classification botanists follow while classifying plants and mention different ‘Suffixes’ used for the units.
