Which of the following have played a part in human evolution, different races adapting to different climate ?

A. Geographical isolation

B. Reproductive isolation

C. Behavioural isolation

D. Hybrid in viability

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

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  1. The term Thylum' in taxonomy was given by
  2. Which of the following shows deuteros- I tome condition ?
  3. Ornithorhynchus is a
  4. Egg laying mammals are found in
  5. Tortoises and turtles are included under order
  6. Sea Stick refers to group
  7. Aside from a three chambered heart, reptiles are characterised by the presence of
  8. Constant body temperature is found in
  9. Which one of the following is found in chordates but not in non-chordates
  10. Which of the sponge is given as a gift in Japan?
  11. Sepia is also known as
  12. Bony plates are found in addition to scales in
  13. Binomial system of nomenclature in classification was divided by Carolus Linnaeus. It provides the names…
  14. Apart from mammals, the other group of animals maintaining high and constant body temperature is
  15. Character common in spider, cockroach and centipede is
  16. Bilateral symmetry, metameric segmentation, coelom and open circulatory system are characters of
  17. Which one of the following is a metatherian mammal ?
  18. In fishes, lobed fins are found in
  19. A definite number of body segments is found in
  20. Most important characteristic of the mammal is the presence of
  21. The biggest phylum in regard to the number of species is
  22. Which one is characteristic for birds ?
  23. The smallest unit of classification in animals is
  24. Which of the protozoan is considered as connecting link between animals and plants ?
  25. Spider is not included under class insects because of
  26. The segmentation which affects both external and internal features represented in
  27. A pearl oyster belongs to class
  28. Branchiostonta is an example of
  29. Dolphins are classified under
  30. True fishes possess gills and fins. Which of the following is not a true fish ?