More sparse urban settlement patterns may help conserve energy and preserve the environment.
a. true
b. false
Ans: b. false
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Sequences of genomic DNA and its corresponding messenger RNA (mRNA) are often compared to obtain valuable information for genome annotation. Why is this comparison
A. The open reading frame of the mRNA includes the introns of the genomic DNA. B. The exclusion of introns in mRNA reveals the intron-exon structure of many protein coding genes. C. The genomic DNA is longer because the exons are spliced together. D. The genomic DNA is shorter because the exons are spliced together. E. The sequences of genomic DNA and mRNA are identical, which serves as independent validation.
You cut down a tree and count 23 annual rings in the trunk. You conclude that the tree is
A. probably 230 years old. B. most likely 23 years old. C. 46 years old. D. older than 46 years. E. This information does not tell the age of the tree.
Which of the following is recommended by the Standard Precautions guidelines?
A. Glove use B. Hand washing C. A face shield D. Antibiotic use E. Glove use, hand washing, AND a face shield
If primary production increases in an ecosystem, it would be reasonable to expect that
A. nutrients would no longer be limiting factors. B. net production would not increase. C. cellular respiration would decrease. D. the trophic web would become more complex. E. the biomass of herbivores would increase.