The cell wall is a common feature to
A. prokaryotic cells only.
B. all cells.
C. animal cells only.
D. prokaryotic and plant cells.
E. plant cells only.
Answer: D
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cause which of the following? a. increase in blood pressure b. increase in pulse rate c. increase in digestive activities d. increase in blood sugar level e. increase in metabolic rate
Penicillin is a competitive inhibitor produced by a fungus in order to kill invading bacteria. It does this by mimicking the substrate required by the bacterium to build and repair its cell wall
Describe how mimicking the substrate would result in the death of the bacterium.
Which of the following represents energy flow in a grazing food web?
A. Producers ? detritivores ? decomposers B. Producers ? decomposers ? detritivores C. Producers ? herbivores ? decomposers ? carnivores D. Producers ? herbivores ? carnivores ? decomposers E. Producers ? herbivores ? detritivores ? carnivores
The drug used against intestinal anaerobic bacteria, that can also alter normal flora causing antibiotic-associated colitis is
A. bacitracin. B. chloramphenicol. C. clindamycin. D. ciprofloxacin. E. gentamicin.