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Home Q & A Board Biology-Related Homework Help Environmental and Conservation Biology
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Pramila Pramila
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6 years ago
Which of the following is TRUE?
A) Species on Earth today are but a fraction of all species that ever lived.
B) The number of species existing at any given time has decreased throughout history.
C) Extinctions of past species has happened gradually and on a small scale.
D) Most organisms present early in Earth's prehistory were more complex than modern organisms.
E) Bacteria represent a newer form of life that was not present during the early prehistory of Earth.
Textbook 
Environment: The Science Behind the Stories, Canadian Edition

Environment: The Science Behind the Stories, Canadian Edition


Edition: 3rd
Authors:
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6 years ago
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