56.What is the finding of Peter Mayhews recent study?
A.Higher temperature causes the low biodiversity of marine invertebrates.
B.Fossil record can represent a relatively believable history of life.
C.The number of fossils was higher during greenhouse phases.
D.Global warming might promote the richness of species on Earth.
57.What do we learn about Mayhews previous report?
A.It was based on his colleagues hypothesis about global warming.
B.It was contrary to what his team found in the recent study.
C.It was a complete reversal from his 2008 study about marine invertebrates.
D.It found evidence for the connections between biodiversity and temperature.
58.Why does Mayhews team use data that standardized the number of fossils?
A.They realize not all fossils can sample well to represent biodiversity changes.
B.They start to consider the variables that might influence biodiversity.
C.They want to check the previous findings with different research methods.
D.They believe sea level changes can lead to inaccurate fossil records.
59.Because of the huge timescales in his study,Mayhew believed .
A.global warming is not hazardous t0 1iving creatures in a short time
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