If organisms A, B, and C belong to the same class but to different orders and if organisms C, D, and E belong to the same order but to different families, which of the following pairs of organisms would be expected to show the greatest degree of structural homology?
A) A and D
B) B and D
C) B and C
D) D and E

Question

Quizplus · Accepted Answer

Organisms D and E belong to the same order and therefore are expected to have a higher degree of structural homology than organisms belonging to different orders (such as A and D, or B and D). The fact that organisms C, D, and E belong to the same order also suggests that they share certain structural characteristics.

If Organisms A, B, and C Belong to the Same