The loss of water from pores of plant leaves is called:
A) transpiration
B) respiration
C) evaporation
D) two of these choices
Correct Answer:
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Q7: Denitrification is:
A)a process by which nitrates are
Q8: Nitrogen-fixing bacteria:
A)oxidize ammonia to nitrates or nitrites
B)oxidize
Q9: Nitrification is characterized by all of the
Q10: Sulfur oxidation is carried out by _.
A)Thiobacillus
B)Desulfovibrio
C)Desulfomonas
D)Desulfotomaculum
Q11: Sulfate-reducing bacteria are characteristically _.
A)strict anaerobes
B)desulfovibrio
C)utilizing sulfate
Q13: The mechanism whereby Rhizobium and the legume
Q14: Which of the following microbes is not
Q15: Nitrogen-fixing bacteria include:
A)Cyanobacteria
B)Clostridium
C)Klebsiella
D)all of these choices
Q16: Microbes in the environment can be _.
A)producers
B)consumers
C)decomposers
D)all
Q17: Which is a primary symbiotic nitrogen fixer
A)Azotobacter
B)Rhizobium
C)Cyanobacteria
D)Clostridium
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