Evidence of which structure or characteristic would be most surprising to find among fossils of the Ediacaran fauna?
A)True tissues
B)hard parts
C)bilateral symmetry
D)cephalization
E)embryos

Question

Quizplus · Accepted Answer

The Ediacaran fauna is known for its lack of hard parts, so the discovery of fossils with hard parts would be surprising. True tissues (A) have been found in some Ediacaran organisms, but they are not common. Bilateral symmetry (C) has been found in some Ediacaran organisms, but it is not a typical feature of the group. Cephalization (D) and embryos (E) are not expected in the Ediacaran fauna, as these are more complex features typically found in later organisms.

Evidence of Which Structure or Characteristic Would Be Most Surprising