A growth medium that distinguishes among different groups of bacteria on the basis of their biological characteristics is called a ________ medium.
A. differential
B. transport
C. enrichment
D. selective
Answer: A
Biology & Microbiology
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Which group's members have both lungs and gills during their adult lives?
A) sharks, skates, and rays B) lungfishes C) lancelets D) turtles E) alligators
Biology & Microbiology
Which of the following are produced during the citric acid cycle?
A. ATP, NADH, and FADH2. B. A proton gradient. C. Pyruvate, ATP and NADH. D. ATP and NAD+. E. Oxygen.
Biology & Microbiology
Which process is the driving force behind the movement of xylem sap upward through the tracheids and vessels in xylem?
1.Bulk flow 2.Osmosis 3.Plasmolysis 4.Transpiration
Biology & Microbiology
Leaf abscission is initiated and orchestrated by changing levels of the plant hormone __________
a. ethylene b. cytokinin c. auxin d. abscisic acid e. gibberellin
Biology & Microbiology