New ecological niches may become available when
A) a new island, or chain of islands, emerges, like the Galápagos Archipelago.
B) a clade goes extinct, like the non-avian dinosaurs at the end of the Cretaceous period.
C) a new lake emerges, like the Great Lakes of East Africa.
D) all of the above

Question

Quizplus · Accepted Answer

New ecological niches can become available through various natural events, such as the emergence of new landforms (islands or lakes) or the extinction of species, which opens up spaces in ecosystems for new species to evolve and fill those niches.

New Ecological Niches May Become Available When