Clay in soils represents a trade-off in nutrient availability, such that _____
A) anions are less likely to leach out of soil and are difficult for plants to extract
B) cations are less likely to leach out of soil and are difficult for plants to extract
C) nitrogen levels are exceptionally high, but much of the nitrogen leaches away
D) oxygen levels are exceptionally high, but much of the nitrogen leaches away
Answer: B
You might also like to view...
Which one of the following is a molecule?
A) NaCl B) O C) C D) Lead E) N
The state of torpor caused by lack of food or water during periods of high temperature is called:a
acclimatization. b. hibernation. c. conformation. d. estivation. e. migration
A proteome is:
A) all of the mRNA in a cell B) an inventory of all the proteins in a tissue, cell, or cellular organelle C) another name for a genome D) the cell's rDNA
The following figure shows studies in a stream where enclosures were set up either with trout or with no trout. Which statement is a correct interpretation of the graph about trout, invertebrates, and algae? 
A. Trout do not seem to affect the algae production; only the invertebrate populations are affected. B. If trout are present in a system, algae production is low and invertebrate population levels are also low. C. Trout do affect the algae production but not the invertebrate populations. D. If trout are present in a system, algae production is high and invertebrate population levels are also high. E. If trout are present in a system, algae production is high and invertebrate population levels are low.