Question

Species richness increases _____. Group of answer choices as we increase in altitude in equatorial mountains as community size decreases as we travel southward from the North Pole as depth increases in aquatic communities on islands as distance from the mainland increases

Answer 1

as we travel southward from the North Pole

Option C.

Explanation:

Species richness means the different types of species available in a particular area. The area having more types of species in it, is said to be an area rich in the species.

This richness and the increase in the type of species increase with the movement of the people towards the south direction from the north pole and get closer to the equator. The types of species seen would be more.

Answer 2

Species richness increases as we travel southward from the North Pole.

Explanation:

Species richness is at its highest in places near or surrounding the equator and reduces gradually towards the poles. As one travel towards south from the northern pole, the temperate, tropical and equatorial regions will be reached where there is huge diversity of species.

Be it the tropical rain forests, the Amazon forests, or the deciduous forests, they are highly rich in their species population and variety. This is mainly due to availability of favorable conditions like weather, temperature, rainfall, etc which favors their growth and reproduction. Numerous phyla or classes of species can be found in such equatorial belts rather than in the north or the south pole.

Elevation gradient also plays an role in species richness.