The primary RNA transcript in eukaryotes is
A. mRNA before the exons have been removed.
B. tRNA before it forms its hairpin loops.
C. mRNA after the introns have been removed.
D. rRNA before it forms the ribosome.
E. mRNA before the introns have been removed.
Answer: E
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If two organisms cannot mate due to physical differences, it is known as temporal isolation
a. True b. False
What is the timescale for succession to occur?
A) years B) decades C) millennia D) All of the above are suitable timeframes.
In a microcosm experiment, Chris Steiner and colleagues showed that resilience was positively related to the number of species present, but only in __________-productivity microcosms.
A) low B) high