Consider the following statements 1 Terrestrial biodiversity is thought to be up to 25 times greater...........

Environment and Ecology Biodiversity

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Consider the following statements:

1. Terrestrial biodiversity is thought to be up to 25 times greater than ocean biodiversity.

2. Generally there is an increase in biodiversity from the tropics to the poles.

Which of the statements given above is/are correct?

1 only

2 only

Both 1 and 2

Neither 1 Nor 2

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Explanation:

Generally, there is an increase in biodiversity from the poles to the tropics. Thus localities at lower latitudes have more species than localities at higher latitudes. This is often referred to as the latitudinal gradient in species diversity. Several ecological factors may contribute to the gradient, but the ultimate factor behind many of them is the greater mean temperature at the equator compared to that of the poles.