What structural feature differentiates prokaryotic flagella from eukaryotic flagella in terms of movement?

• A. Eukaryotic flagella are powered by ATP, while prokaryotic are powered by light.
• B. Prokaryotic flagella use dynein for movement.
• C. Eukaryotic flagella rotate like a corkscrew.
• D. Prokaryotic flagella rotate, whereas eukaryotic flagella whip back and forth.

Answer: (D)