Question

multiple choice question\
when a swimming bacterium changes direction, it will ______.\
\
toss\
\
tumble\
\
flip\
\
run

Explanation:

Bacteria like E. coli change direction by tumbling. Tossing, flipping, or running don't describe bacterial directional change accurately. Tumbling involves random reorientation to change swimming direction.

Answer:

B. tumble