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What is true about assertion a and reaso...

What is true about assertion a and reason r?
Assertion a. The 'biological species' concept helps us to ask how species are formed.
Reason r. The concept of biological species focusses our attention on the question of how reproductive isolation comes about

A

Both a and r are correct but r does not explain a.

B

Both a and r are correct and r is true explanation of a

C

both a and r are not true

D

Only a is true, r is not correct

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The correct Answer is:
D
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DINESH PUBLICATION-THE LIVING WORLD-R Q
  1. Related genera belong to the same

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  2. taxonomic hiearachy refers to

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  3. What is true about assertion a and reason r? Assertion a. The 'biolo...

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  4. Which is not applicable to biological species concept ?

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  5. Which taxonomic aid gives comprehesive account of complete complied in...

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  6. Which of the following combinations is correct for wheat

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  7. A group of related genera, with still less number of similarities as c...

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  8. Population are said to be sympatric when

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  9. Botanical names of plants are treated as in Latin because

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  10. The Indian Botanical Garden is located at

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  11. Which of the following is the hierarchical sequence

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  12. Which of the following statement regarding universal rules of nomencla...

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  13. Match the colums and choose the correct combinations from the options ...

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  14. Which is the correct sequence of taxonomic categories?

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  15. Pesticide used in perpartion of herbarium is

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  16. The generic name of mango is

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  17. Scientific study of diversity of organisms and their evolutionary rela...

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  18. Which is not a correct hierarchical order

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  19. Match and find the correct options {:(a,"Plantae",p,"Archaebacteria"...

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  20. select the incorect statements (A) lower the taxon, more are the cha...

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