What distinguishes faces with bi-lateral symmetry?
A) Faces with bi-lateral symmetry have facial features that are in sizes proportional to each other.
B) Faces with bi-lateral symmetry have facial features that vary in size and location on both sides of the face.
C) Faces with bi-lateral symmetry have facial features of that blend across both sides of the face.
D) Faces with bi-lateral symmetry have facial features of the same size and location on both sides of the face.

Question

Quizplus · Accepted Answer

Bi-lateral symmetry means that the left and right sides of the face are symmetrical, which means that features such as the eyes, nose, and mouth are of the same size and location on both sides of the face. Option A is incorrect because there may be some variation in facial feature sizes in a person's face even if it has bi-lateral symmetry. Option B is incorrect because asymmetry in facial features would mean the face does not have bi-lateral symmetry. Option C is incorrect because blending across both sides of the face would not result in symmetrical features on both sides.

What Distinguishes Faces with Bi-Lateral Symmetry