Penicillin is effective against bacterial infections because it interferes with the construction of
new __________ in the bacteria.
a. DNA
b. cell walls
c. endoplasmic reticulum
d. mitochondria
B
Biology & Microbiology
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Provide a reason for the ecological importance of pelagic Bacteria and Archaea
What will be an ideal response?
Biology & Microbiology
Mules are unusual hybrids because they
a. are weak. b. have a low survival rate. c. are robust. d. are sterile. e. produce sterile offspring.
Biology & Microbiology
The tissue that produces cells to thicken a root or stem is/are the
A. apical meristem only. B. apical and lateral meristems. C. tracheid. D. vascular bundle. E. lateral meristem only.
Biology & Microbiology
Which of the following organisms is not an osteichthyan?
a. Bird b. Shark c. Cod d. Coelacanth e. Human
Biology & Microbiology