In which period did the number of species increase most rapidly?

a. 0 to 20 years
b. 20 to 40 years
c. 40 to 60 years
d. 60 to 100 years
e. 100 to 160 years


Answer: a. 0 to 20 years

Biology & Microbiology

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A. Messenger RNA (mRNA) B. Ribosomal RNA (rRNA) C. Transfer RNA (tRNA) D. Heterogeneous nuclear RNA (hnRNA)

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