After examining the fossil record, scientists have determined that scorpions today are much
smaller than their extinct ancestors. For example, Jaekelopterus rhenaniae, a giant scorpion
species that lived 255 million to 460 million years ago, was 2.5 meters long. Which of the
following conclusions is supported by this information?
F Scorpions living today have increased their numbers since they first appeared.
G Scorpions in the fossil record are smaller than their descendants are.
H Scorpions have changed as a result of natural selection,
J Scorpions do not appear in their original state in the fossil record.