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Couplet represents the choice made between two opposite options which results in

A. rejection of both the option.

B. acceptance of both the option.

C. either acceptance or rejection of both the option.

D. acceptance of only one and rejection of the other.

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. Which of the following statements are correct?(i) Genus comprises a group of related species.(ii) Taxon…
  2. Which of the following are unique features of living organisms?
  3. Which two points are known as the twin characteristics of growth?(i) Increase in mass(ii) Differentiation(iii)…
  4. Match the taxonomic categories given in column I with their feature given in column II.Column IColumn…
  5. Couplet represents the choice made between two opposite options which results in
  6. Systematics refers to the
  7. Which of the following taxonomic category of housefly is incorrectly matched?
  8. Which of the following statements are correct about herbarium?
  9. Genus represents
  10. In multicellular organisms, _____ refers to the production of progeny possessing features more or less…
  11. Taxon is a
  12. In the given columns, column I contains the terms and column II contains its description. Select the…
  13. Which of the following statement(s) is/are not correct ?(i) Reproduction is the production of progeny…
  14. The famous botanical garden Kew is located in
  15. Herbarium is a
  16. The practical purpose of classification of living organisms is to
  17. Select the correct statements (i-v) regarding taxonomic categories.(i) Each step or rank in hierarchy…
  18. Cell division occurs _______ in plants and _______ in animals.
  19. Which of the following characters given below displays the description of lowest taxonomic category…
  20. Match column-I (Biological name) with column-II (Class) and choose the correct option.Column-IColumn-II(Biological…
  21. Statement 1: Information given on the label of herbarium sheets does not include family.Statement 2:…
  22. Which of the following taxonomic aid provides information for the identification of names of species…
  23. Which one of the following is not a correct statement?
  24. Each category of taxonomic hierarchy refers to as a unit of ______.
  25. Two animals which are the members of the same order must also be the members of the same __________.
  26. As we go from species to kingdom in a taxonomic hierachy, the number of common characteristics
  27. Statement 1 : Taxon and category are different things.Statement 2 : Category shows hierarchical classification.
  28. Which of the following is less general in characters as compared to genus?
  29. In printed scientific names, only the ______ is capitalized.
  30. Which one of the following statements is correct about biodiversity ?