The rough periwinkle,Littorina saxatilis,is found on the coast of northern Spain.The snails farther up the shore are large with heavily ridged and banded shells,while those exposed to the waves farther down the shore are smaller with smooth and unbanded shells.This separation along the boundary of a habitat could lead to ____ speciation.

Question

Quizplus · Accepted Answer

Parapatric speciation occurs when populations are separated not by a physical barrier but by an extreme change in habitat, leading to divergence due to different selective pressures.

The Rough Periwinkle,Littorina Saxatilis,is Found on the Coast of Northern