________ of prokaryotic genomes are now available in public databases
A) Dozens
B) Hundreds
C) Thousands
D) Millions
Answer: C
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Of all the different types of plants, only _____________ are able to survive in the harsh environmental conditions of Antarctica
A. lycophytes B. gymnosperms C. angiosperms D. bryophytes E. ferns
Tasting dissolved sugar molecules from ice cream is detected by
A. mechanoreceptors. B. thermoreceptors. C. chemoreceptors. D. proprioceptors. E. photoreceptors.
Which of these cell surface proteins interact directly with antigens during the adaptive immune response?
a. immunoglobulins b. T cell receptors c. MHC proteins d. all of the above
Which type of active transport is illustrated here?
1.Antiport
2.H+ pumped against its gradient
3.Symport
4.Uptake of cations