Which of the following statements is correct?
$I.$ In a population,birth rate and death rate refer to per capita births and deaths,respectively.
$II.$ In nature,we rarely find isolated single individuals of any species.
$III.$ The size of a population for any species is a stable phenomenon.
$IV.$ Ecological effects of any factors on population growth are generally reflected in its size/population density.

  • A
    $I$ and $II$
  • B
    $II$ and $III$
  • C
    $I, II$ and $III$
  • D
    $I, II$ and $IV$

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Which major biome of India is represented in the given figure?

Comment on the following figures: $I, II$ and $III$. Here,$A, B, C, D, G, P, Q, R, S$ represent different species.

Identify $X$ and $Y$ in the given figure,which represents the biome distribution with respect to mean annual temperature and mean annual precipitation.

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Match List $I$ with List $II$.
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