Question

the island biogeography model explains
the amount of water
that surrounds an island
the effect the mainland
has on the surrounding
islands
factors affecting the
number of different
species in a region
geographical features of
an island

Explanation:

The island biogeography model focuses on species diversity. It considers factors like island size and distance from the mainland to explain species richness. The first option is about water quantity (irrelevant). The second is about mainland - island effect (too narrow). The fourth is about geography (not the core). The third option aligns with the model's focus on species number factors.

Answer:

C. factors affecting the number of different species in a region