Question
Question: Fossil X can be considered to have evolved earlier than fossil Y if :...
Fossil X can be considered to have evolved earlier than fossil Y if :
A
Y has vestigial structures that are homologous to functional structures in fossil X
B
Y is structurally more complex than fossil X
C
Y is in better state of preservation than X
D
X is found in lower stratum of undisturbed sedimentary rock than Y
Answer
Y has vestigial structures that are homologous to functional structures in fossil X