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In phylum arthropoda, excretion takes place through

A. nephridia

B. flame cells

C. malphigian tubules

D. gills

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  1. Hemichordates have now been placed with the nonchordates, close to echinoderms, because true
  2. Which of the following is an incorrect statement regarding flatworms ?
  3. The following statement are associated with the occurrence of notochord. Identify the incorrect statement.
  4. Match the types of animals given in column I with their examples given in column II and choose the correct…
  5. In phylum arthropoda, excretion takes place through
  6. Which of the following statement(s) is/are correct regarding phylum mollusca?
  7. Which one of the following features is common in silverfish, scorpion, dragonfly and prawn?
  8. Which one of the following categories of animals is correctly described with no single exception in…
  9. Which of the following characteristic is probably most responsible for the great diversification of…
  10. Which of the following phylum is being described by the given statements?(i) They are bilaterally symmetrical,triploblastic,…
  11. Which of the following is not a chordate character?
  12. In which of the phylum, excretory organ like proboscis gland is present?
  13. Select the incorrect feature of mollusca from the given statements. Terrestrial or aquatic animals having…
  14. Which of the following animal's body is covered by calcareous shell and unsegmented with a distinct…
  15. Which of the following sets of animals give birth to young ones?
  16. Read the following statements and answer the question.(i) They are exclusively marine, radially symmetrical,…
  17. Tracheae of cockroach and mammal are similar in having
  18. Which of the following is a poisonous snake?
  19. Identify the figures A, B and C and choose the correct option. 
  20. Polyp phase is absent in
  21. Which of the following possesses electric organs and belongs to class chondrichthyes?
  22. The given figures A, B, C and D are the examples of first true land vertebrates. They are dominant in…
  23. Which of the following animal contains respiratory organs like, gills, book gills, book lungs or tracheal…
  24. The combination of a true coelom and repeating body segmentation allows the annelids (unlike the anatomically…
  25. Which of the following statement(s) is/are correct for class amphibia?(i) Body is divisible into head…
  26. The transition from aquatic to terrestrial lifestyles required many adaptations in the vertebrate lineage.…
  27. Which of the follwoing statement(s) is/are correct?(i) Organ systems in different group of animals show…
  28. Column-I contains organisms and column-II contains their exeretory structures. Choose the correct match…
  29. Which of the following is a fresh water sponge?
  30. Identify the correct characteristics of porifera. Commonly known as sea walnuts.Presence of ostia and…