Choose the incorrect sentence$(s)$ regarding latitudinal gradients.
$(I)$ Biodiversity throughout the world shows uneven distribution.
$(II)$ According to latitudinal gradient,there is no major difference in biodiversity.
$(III)$ Species diversity increases as we move away from the equator towards the poles.
$(IV)$ Biodiversity increases as we move from temperate to tropical regions.

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

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$A$ species-area curve is drawn by plotting the number of species against the area. Why is the slope of the regression line steeper when a very large area (like an entire continent) is considered compared to smaller areas?

Match the correct pair.
Column $- I$ Column $- II$ (Bird species)
$(a)$ Colombia $(p)\; 1200$
$(b)$ $41^o N$ New York $(q)\; 1400$
$(c)$ India $(r)\; 105$
$(d)$ Greenland at $71^o N$ $(s)\; 56$

Given below are two statements.
Statement $I$: There is less species biodiversity in tropical latitudes than in temperate regions.
Statement $II$: Tropical environments, unlike temperate ones, are less seasonal, relatively more constant and predictable.
In the light of the above statements, choose the correct answer from the options given below.

Which one of the following reasons is proposed for the greater species diversity in tropical environments compared to temperate ones?

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Species diversity is bountiful in the tropics near the equator because of the following factors $EXCEPT$ . . . . . .

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