In which habitat would you most likely find archaea?
a. acidic hot springs
b. swamp mud
c. Great Salt Lake
d. all of the above
Ans: d. all of the above
You might also like to view...
To prevent the souring of crude oil, ________ is added to oil well injection water to encourage ________ instead of ________
A) oxygen / aerobic respiration / sulfate reduction B) sulfate / sulfate reduction / fermentation C) sulfate / sulfate reduction / nitrate reduction D) nitrate / nitrate reduction / sulfate reduction
All of the following can contribute to
desertification EXCEPT a. drought. b. overplowing. c. overgrazing. d. natural fertilizer. e. All of these can contribute to desertification
Which of the following processes could result in the net movement of a substance into a cell, if the substance is more concentrated in the cell than in the surroundings?
A) active transport B) facilitated diffusion C) diffusion D) osmosis
If the mutation rate of individual genes is taken to be about one in 100,000 genes per cell cycle across many organisms, we might expect evolution to proceed at a consistent rate for various forms of life. Which factor could make the accumulation of gene mutations faster or slower among different organisms?
A. Organisms with more genes will likely have more mutations per generation. B. Organisms vary in the percent of loci that have multiple alleles. C. Some organisms may be more effective at repairing mutations before they are passed on to the next generation. D. More selection of mutations can occur in a shorter period of time for bacteria that replicate each twenty minutes than for humans with a (roughly) 20-year generation span. E. All of the choices are correct.