What is the general trend in diversity in vascular plants for the past 145 million years?
What will be an ideal response?
ANSWER: The approximate number of species has increased in the past 145 million years.
Angiosperm species became dominant between 65 and 23 million years ago. The
proportion of all other groups of vascular plants has declined as the diversity of
angiosperms increased.
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damage?
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Which test would they use to confirm that the difference between observed and expected outcomes can be attributed to chance?
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