A high-pitched sound is characterized by
A. a short wavelength and high frequency.
B. a short wavelength and low frequency.
C. a long wavelength and high frequency.
D. a long wavelength and low frequency.
E. a very long wavelength and very low frequency.
A. a short wavelength and high frequency.
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Refer to the paragraph on the Venter et al. paper and the table above. What practical applications for human society may arise first from this or similar metagenomic studies?
A) New genes with useful properties may be identified and ultimately put to use. B) New microbial species could be isolated from seawater. C) An increased knowledge of the diversity of marine ecosystems could lead to investigations of diversity in other ecosystems. D) Species discovered in the Sargasso Sea may also be found to inhabit less-remote waters.
What is the correct order of gene expression in the early Drosophila embryo?
A. pair-rule genes, gap genes, segment polarity genes B. gap genes, pair-rule genes, segment polarity genes C. gap genes, segment polarity genes, pair-rule genes D. segment polarity genes, pair-rule genes, gap genes
________ act as proton pumps and keep the internal proton concentration of lysosomes high.
Fill in the blank(s) with the appropriate word(s).
The JEMBEC transport system for Neisseria spp. provides an atmosphere with increased _________ to keep the organism viable during transport
a. hydrogen (H2) b. carbon dioxide (CO2) c. nitrogen (N2) d. nitrate (NO3)