Home

Which of the following statement(s) is/are correct regarding class aves?
(i) The forelimbs are modified into wings and the hindlimbs generally have scales and are modified for walking, swimming or clasping the tree branches.
(ii) Heart is completely four-chambered.
(iii) They are warm- blooded (homoiothermous) animals i.e., they are able to maintain a constant body temperature.
(iv) They are oviparous and development is direct.

A. Both (i) and (iii)

B. Both (i) and (iv)

C. (i), (ii) and (iii)

D. All of these

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

You can do it
  1. Match the phylum given in column - I with the special features present in them given in column - II…
  2. Identify the correct characteristic feature shown by the given figure? 
  3. Which of the following statement is incorrect?
  4. The given figures (A & B) shows the germinal layer. The animals having structures shown in the figures…
  5. A student brought home a strange animal which he found outside under a rock. It had moist skin, a complete…
  6. Which of the following animal's body is covered by calcareous shell and unsegmented with a distinct…
  7. The given figure shows some characteristic features marked as chordates. Identify the correct labelling…
  8. The transition from aquatic to terrestrial lifestyles required many adaptations in the vertebrate lineage.…
  9. Which of the following features distinguish mammals from other vertebrates ?
  10. A student was given a specimen to identify on the basis of the characteristics given below.(i) They…
  11. Refer the given figures A, B, C and D and identify the option which shows their correct name. 
  12. The given figures A, B, C and D are the examples of first true land vertebrates. They are dominant in…
  13. Column I contains zoological names of animals and column II contains their common name. Match the following…
  14. Match the types of animals given in column I with their examples given in column II and choose the correct…
  15. Which of the following characteristic distinguish arthropoda from annelids and molluscs ?
  16. Heart is three - chambered in reptiles, except
  17. In amphibians, respiration occurs through
  18. Which of the following is not a characteristic feature of kingdom animalia ?
  19. Which of the following statement(s) is/are correct regarding phylum coelenterata?(i) They are aquatic,…
  20. Examine the figures A, B and C. In which one of the four options all the items A, B and C are correctly…
  21. Read the following statements and answer the question.(i) They are exclusively marine, radially symmetrical,…
  22. Which of the following animals are bilaterally symmetrical?
  23. Select the incorrect feature of mollusca from the given statements. Terrestrial or aquatic animals having…
  24. __________ is responsible for maintaining the current of water in sponge.
  25. Identify the figure with its correct name and phylum. 
  26. Identify the animals shown in the given figures A, B and C from options given below. 
  27. The figure given below is the characteristic structure of the phylum in which animals are aquatic, free…
  28. Match the characteristic feature/terms given in column I with the phylum to which they belongs given…
  29. Which of the following sets of animals give birth to young ones?
  30. Hemichordates have now been placed with the nonchordates, close to echinoderms, because true