The variations observed among different species of organisms are due to the differences in their ......... .

  • A
    Differences in abiotic molecules
  • B
    Similarities in biomolecules
  • C
    Presence of biomolecules
  • D
    Differences in biomolecules

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Assertion : Scurvy is caused by deficiency of vitamin.
Reason : Deficiency of ascorbic acid causes scurvy.

Match List-$I$ with List-$II$.
List-$I$List-$II$
$A$. Starch$I$. Fights infection
$B$. Antibody$II$. Energy storage
$C$. Concanavalin$III$. Glucose transport
$D$. Glut-$4$$IV$. Lectin

Choose the correct answer from the options given below:

The energy currency of the cell is ......... .

Match the following:
$(a)$ Inhibitor of catabolic reaction$(i)$ Ricin
$(b)$ Contains peptide bond$(ii)$ Malonate
$(c)$ Cell wall material in fungi$(iii)$ Chitin
$(d)$ Secondary metabolite$(iv)$ Collagen

Select the correct option:

Most of the unique properties of water result from the fact that water molecules

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