Which of the following is most likely to bind to sand particles in soil?
A. Potassium ions
B. Sodium ions
C. Lithium ions
D. Chloride ions
E. None of the above
Answer: E. None of the above
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Organisms capable of nitrogen fixation
a. include some bacteria. b. include some cyanobacteria. c. may live as symbionts with other organisms. d. all of the above.
Cellular slime molds can be distinguished from
plasmodial slime molds on the basis of a. reproductive structures. b. spore formation. c. number of nuclei per cell. d. slime trails. e. food requirements.
If red flowers (R) is dominant over white flowers (r), plants with Rr ____
a. are homozygous dominant b. are homozygous recessive c. have red flowers d. have white flowers e. have pink flowers
Cells produce ATP most efficiently in the presence of
A.) water B.) carbon dioxide C.) oxygen D.) glucose