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Flame cells present in platyhelminthes, are specialized in

A. respiration and absorption.

B. osmoregulation and circulation.

C. respiration and excretion.

D. osmoregulation and excretion.

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  2. Few cnidarians like corals have a skeleton composed of
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  4. Which of the following sets of animals give birth to young ones?
  5. The combination of a true coelom and repeating body segmentation allows the annelids (unlike the anatomically…
  6. Match the types of animals given in column I with their examples given in column II and choose the correct…
  7. In amphibians, heart is ________ chambered.
  8. Refer the figures A, B, C and D given below. Which of the following options shows the correct name of…
  9. In ctenophora, the body bears _______ external rows of ciliated comb plates, which help in locomotion.
  10. In amphibians, respiration occurs through
  11. Match the organisms given in column-I with their common name given in column-II and choose the correct…
  12. A student was given a specimen to identify on the basis of the characteristics given below.(i) They…
  13. Which of the following is not the common fundamental feature for animal classification?
  14. Which of the following statements (i v) are incorrect?(i) Parapodia are lateral appendages in arthropods…
  15. Which of the following animal's body is covered by calcareous shell and unsegmented with a distinct…
  16. The given figures of animals (A & B) are distinguished on the basis of symmetry. Select the correct…
  17. Which of the following phylum is being described by the given statements?(i) They are bilaterally symmetrical,triploblastic,…
  18. Which of the following statements is incorrect ?
  19. Which of the following is a correct match of a phylum with their three examples?
  20. Which of the following group of animals reproduces only by sexual means?
  21. Which of the following feature in birds indicates their reptilian ancestory ?
  22. Meandrina (brain coral) belongs to phylum
  23. Match the features given in column I with their examples given in column II and choose the correct match…
  24. Which of the following statement(s) is/are correct?(i) Animals in which the cells are arranged in two…
  25. Refer the following animals and identify those which have a fluid filled body cavity with a complete…
  26. Match the phylum given in column - I with the special features present in them given in column - II…
  27. Aquatic annelids (like Nereis) possess lateral appendages called ______________, which help in swimming.
  28. Which one of the following categories of animals is correctly described with no single exception in…
  29. Which of the following statement(s) is/are correct regarding phylum coelenterata?(i) They are aquatic,…
  30. Match the phylum given in column - I with their example given in column - II and choose the correct…