When will a protein have a net positive charge?
A) always
B) never
C) when the pH is above its isoelectric point
D) when the pH is below its isoelectric point
D
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What differences exist between tropical wet (Af), tropical monsoon (Am), and tropical wet and dry (Aw) climates? Do you expect to observe any significant differences in types of vegetation in these different climates groups?
What will be an ideal response?
Which statement is true concerning a lunar day?
A) A lunar day is shorter than a solar day. B) A lunar day represents the time between when the moon is highest in the sky and the next time it is highest in the sky. C) A lunar day is 26 hours. D) Because of the length of a lunar day, lunar tides usually arrive 30 minutes earlier each day.
Which one of the following soil orders is the most typical of drylands and deserts?
A) Alfisols B) Oxisols C) Mollisols D) Aridisols
Earthquake magnitude scales such as the Richter scale assess the effects on people and buildings.
Answer the following statement true (T) or false (F)