Rhizobium
A) fix nitrogen inside nodules on the roots of legumes.
B) resemble fungi.
C) produce antibiotics.
D) produce a gall in plants.
Correct Answer:
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Q18: The earliest oxygenic phototrophs are thought to
Q19: Propionibacterium
A)produces propionic acid.
B)produces lactic acid.
C)is responsible for
Q20: Endospores
A)are a form of reproduction.
B)are a dormant
Q21: Azotobacter
A)forms endospores.
B)forms cysts.
C)fixes carbon dioxide.
D)are used as
Q22: Which of the following structures would be
Q24: Movement of spirochetes occurs by means of
Q25: Which causes uncontrolled growth of plant tissue,resulting
Q26: Streptomyces
A)resemble fungi in their pattern of growth.
B)produce
Q27: Heterocysts
A)are found in nitrogen-fixing cyanobacteria.
B)are used to
Q28: Agrobacterium
A)contain the Ti plasmid that modifies the
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