The fossil record of brachiopods shows
A)they have only recently branched off from molluscan bivalves.
B)they have existed nearly unchanged in design since the Ordovician times.
C)they have evolved rapidly to displace many molluscs.
D)they have never been common and are now going extinct.
E)they are now much bigger than they were in earlier times.

Question

Quizplus · Accepted Answer

The fossil record of brachiopods shows that they have existed nearly unchanged in design since the Ordovician times. They have not evolved rapidly to displace many molluscs, nor have they only recently branched off from molluscan bivalves. There is no evidence that they have never been common and are now going extinct, nor that they are now much bigger than they were in earlier times.

The Fossil Record of Brachiopods Shows