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प्रश्न
Define and understand the following term:
Genus
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उत्तर
Genus comprises a group of related species that have more characters in common in comparison to species of other genera. We can say that genera are aggregates of closely related species. For example, potato and brinjal are two different species, but both belong to the genus Solanum. Lions (Panthera leo), leopards (P. pardus), and tigers (P. tigris), with several common features, are all species of the genus Panthera. This genus differs from another genus, Felis, which includes cats.
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संबंधित प्रश्न
Try to collect all the currently accepted meanings for the word ‘species’. Discuss with your teacher the meaning of species in the case of higher plants and animals on one hand and bacteria on the other:
Define and understand the following term:
Class
Define and understand the following term:
Family
Define and understand the following term:
Order
Illustrate the taxonomical hierarchy with suitable examples of a plant and an animal.
Name one example of the animal which shows the following characteristics:
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.
Classify the following organisms based on the absence/presence of true coelom (i.e., acoelomate, pseudocoelomate and coelomate)
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)
Write names of few thallophytes. Draw a labelled diagram of Spirogyra.
You are given leech, Nereis, Scolopendra, prawn and scorpion; and all have segmented body organisation. Will you classify them in one group? If no, give the important characters based on which you will separate these organisms into different groups.
Animals belonging to phylum protozoa reproduce by fission.
Identity the incorrect statement:
Genus represents ______.
The taxonomic unit ‘Phylum’ in the classification of animals is equivalent to which hierarchical level in classification of plants.
Match the following and choose the correct option:
| 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.
Define a taxon.
