As we move from the equator towards the poles,the species diversity:

New York at $41^o\, N$ has .......... species and Greenland at $71^o\, N$ has ......... species.

What did Alexander von Humboldt describe for the first time?

The relation between species richness and area for a wide variety of taxa turns out to be a rectangular hyperbola. Give a brief explanation.

The relationship between species richness $(S)$ and area $(A)$ represented in the following graph is described by the equation:

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.