If you wanted to increase the cation exchange and water retention capacity of loamy soil, you should _____
A) adjust the soil pH to 7.9
B) add clay to the soil
C) practice no-till agriculture
D) add fertilizer containing potassium, calcium, and magnesium to the soil
E) increase the number of sand particles in the soil
Answer: B
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The hyphae of basidiomycetes:
A. can contain one diploid nucleus B. can contain one haploid nucleus C. can be dikaryotic D. can be heterokaryotic E. can be any of the choices provided except "one diploid nucleus"
The graph in the accompanying figure would best be described as:
a. being characteristic of exponential growth.
b. being characteristic of arithmetic growth.
c. an S-shaped curve.
d. a J-shaped curve.
e. being a J-shaped curve characteristic of exponential growth
Some cytoskeletal elements are more permanent than others. Which components of the cytoskeleton are dynamic structures?
A. microtubules B. microfilaments C. intermediate filaments D. both microtubules and intermediate filaments E. both microtubules and microfilaments
Oxidation occurs when an atom gains one or more electrons
__________________ Indicate whether the statement is true or false.