200
How are imprint fossils formed?
a. An organism dies, decays, and a mold of its body is formed
b. An organism dies and its body parts are replaced by minerals
c. An organism leaves a track in soft mud. The mud dries and hardens into rock
d. Mud fills a mold where an organism died. Then the mud turns to rock.
c) An organism leaves a track in soft mud. The mud dries and hardens into rock