_____(7)
A.be originating
B.have originated
C.originate
D.be originated

_____(9)
A.especially
B.frequently
C.rarely
D.specially

The word "instances" in paragraph 3 is closest in meaning to _______ .
A.reasons
B.processes
C.methods
D.cases

What can be inferred from the passage about the fossils mentioned in paragraph 3?
A.They were found in approximately the same numbers as vascular plant fossils.
B.They are older than the megafossils.
C.They consist of modem life-forms.
D.They have not been helpful in understanding the evolution of terrestrial life.

According to the theory that the author calls "the traditional view," what was the first form of life to appear on land?
A.Bacteria
B.Meat-eating animals
C.Vascular plants
D.Plant-eating animals

With which of the following conclusions would the author probably agree?
A.The discovery of microfossils supports the traditional view of how terrestrial life evolved.
B.The evolution of terrestrial life was as complicated as the origin of life itself.
C.The technology used by paleontologists is too primitive to make accurate determinations about ages of fossils.
D.New species have appeared at the same rate over the course of the last 400 million years.

The word "extracted' in paragraph 3 is closest in meaning to _________ .
A.removed
B.located
C.studied
D.preserved

The word "they" in paragraph 3 refers to ________ .
A.oceans
B.specimens
C.rocks
D.shores

The word "drastic" in paragraph 2 is closest in meaning to _________ .
A.radical
B.Progressive
C.widespread
D.risky

The word "entombed' in paragraph 3 is closest in meaning to __________ .
A.crushed
B.trapped
C.produced
D.excavated