At present, Earth's human population is
A) declining.
B) stable.
C) increasing exponentially.
D) increasing by about 10% per year.
E) increasing at a constant rate.
C
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Which of the following eukaryotic RNA processing events does not occur in the nucleus?
A. intron splicing B. polyadenylation C. degradation of mRNA D. RNA editing
Foodborne intoxication requires the ingestion of living organisms
Indicate whether this statement is TRUE or FALSE.
Which plants have no vascular tissue?
a. angiosperms b. bryophytes c. conifers d. ferns e. ginkgos
One difference between mitosis and meiosis I is that
a. homologous chromosome pairs synapse during mitosis. b. chromosomes do not replicate in the interphase preceding meiosis. c. homologous chromosome pairs synapse during meiosis but not during mitosis. d. spindles composed of microtubules are not required during meiosis. e. sister chromatids separate during meiosis but not during mitosis.