You Take a 1-ML Sample of Pond Water and Add

Multiple Choice

You take a 1-mL sample of pond water and add it to a colorless, viscous media in a small petri dish. When you place it under your dissecting microscope, you see three organisms. Two are struggling to move efficiently through the media, while the third moves more quickly. You attribute the faster movement to the third organism's

A) thick cell wall.
B) flagella.
C) fimbriae.
D) chloroplasts.