Question

Species richness on oceanic islands such as the Galapagos depends on:

survivorship in population

closeness continent

immigration

all of the previous

Both B & C

Answer 1

Hey there,

The correct answer is - all of the previous.

Species richness is basically the number of species per unit area. It depends on many factors out of which the factors described in the options also affect the species richness.

Survivorship in population means the species tend to reduce if there is a competition, so it decreases the richness.

closeness continent- If the size of the continent increases species richness decreases.

Immigration- obviously if there is incoming of species in the island, the species per unit area will increase and thus the species richness will increase.