As few as ____ toxic Escherichia coli cells can cause disease
a. one
b. 10
c. 100
d. 1000
e. 10,000
ANSWER: b
Biology & Microbiology
You might also like to view...
Alveoli are the respiratory surfaces of birds
Indicate whether the statement is true or false.
Biology & Microbiology
Haploid organisms growing via mitosis from spores are called gametophytes
Indicate whether the statement is true or false.
Biology & Microbiology
When potassium ion channels open, which of the following occurs?
a. potassium ions flow into the axon cytoplasm b. the axon cytoplasm becomes more negatively charged c. sodium ions diffuse into the axon cytoplasm d. the threshold potential is reached e. more sodium channels open
Biology & Microbiology
A bacterial genus that has waxy mycolic acid in the cell walls is
A. Salmonella. B. Streptococcus. C. Corynebacterium. D. Mycobacterium. E. Mycoplasma.
Biology & Microbiology