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#Question id: 9190


What is the probable role of salicylic acid in the defense responses of plants?

#Section 2: Evolution
  1. destroy pathogens directly
  2. activate systemic acquired resistance of plants
  3. close stomata, thus preventing the entry of pathogens
  4. activate heat-shock proteins

Answer:- Option(s): 2


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#Question id: 4566

#Section 2: Evolution

Which of these naturalists synthesized a concept of natural selection independently of Darwin?

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#Question id: 4567

#Section 2: Evolution

Charles Darwin was the first person to propose

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#Question id: 4568

#Section 2: Evolution

 In Darwinʹs thinking, the more closely related two different organisms are, the

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#Question id: 4569

#Section 2: Evolution

Which of the following must exist in a population before natural selection can act upon that population?

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#Question id: 4570

#Section 2: Evolution

Which pair would probably have agreed with the process that is depicted by this tree?

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#Question id: 4571

#Section 2: Evolution

Evolutionary trees such as this are properly understood by scientists to be

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