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#Question id: 376


Phosphoric acid is tribasic, with pKa of 2.14, 6.86 and 12.4. The ionic form that predominates at pH 3.2 is

#1. Molecules and their Interaction Relevant to Biology
  1. H3PO4

  2. H2PO4–

  3. HPO42–

  4. PO43–


Answer:- Option(s): 2


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#Question id: 4572

#11. Evolution and Behavior

Of the following anatomical structures, which is homologous to the wing of a bird?

TLS Online TPP Program

#Question id: 4573

#11. Evolution and Behavior

Which of the following pieces of evidence most strongly supports the common origin of all life on Earth?

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#Question id: 4576

#11. Evolution and Behavior

Which of the following pairs of structures is least likely to represent homology?

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#Question id: 4577

#11. Evolution and Behavior

Which of these is a statement that Darwin would have rejected?

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#Question id: 4578

#11. Evolution and Behavior

Which definition of evolution would have been most foreign to Charles Darwin during his lifetime? 

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#Question id: 4579

#11. Evolution and Behavior

About which of these did Darwin have a poor understanding?

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