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The process by which organisms with diff...

The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challenge is called

A

Natural selection

B

Convergent evolution

C

Non - randon evolution

D

Adaptive radiation

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The correct Answer is:
B
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Coagultion is the process by which the dispersed phase of a colloid is made to aggregate and thereby separate from the continuous phase. The minimum concentration of an electrolyte in milli-moles per litre of the electrolyte solution which is required to cause the coagulation of colloidal sol is called coagulation value. Therefore higher is the coagulating power of effective ion, smaller will be the coagulation value. Coagulation value of the electrolyte alpha 1/("coagulating power") The coagualtion value of different electrolytes are different. This behaviour can be easily understood by hardy-schulze rule which states. "The greater is the valency of the effective ion greater is its precipitating power." The coagulation of colloidal particles of the sol can be caused by :

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AAKASH SERIES-EVOLUTION-EXERCISE - III( PREVIOUS AIPMT/NEET QUESTIONS)
  1. According to Darwin , the organic evolution is due to.

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  2. Variations in gene frequecies within populations can occur by chance ...

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  3. The process by which organisms with different evolutionary history evo...

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  4. The eye of octopus and eye of cat show different patterns of of stru...

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  5. The extinct human who lived 1,00,000 to 40,000 years ago , in Eurpose...

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  6. What was the most significant trend in the evolution of modern man ...

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  7. Evolution of different species in a given area starting from a poi...

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  8. Which one of the following options gives one correct example each ...

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  9. What was the most significant trend in the evolution of modern man ...

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  10. Peripatus is a connecting link between

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  11. Which one of the following is incorrect about the characteristic of pr...

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  12. Which one of the following pairs of items correctly belongs ot th...

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  13. Thorn of Bougainvillea and thendril of Cucurbita are example of :

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  14. Drawin's finches are an excellent example of :

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  15. Which one of the following scientist's name is correctly matched with ...

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  16. Which one of the following in birds indicates their reptillian ance...

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  17. One of the important consequence of geographical isolation is :

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  18. Adaptive radiation refers to :

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  19. Industrial melanism as observed in peppered moth proves that

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  20. What is common to whale , seal and shark ?

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