swimming in the ocean blending in with rocks absorbing nutrients finding food inland
I gave my students this multiple choice question: A marine iguana is an animal that lives on the shoreline of warm islands. Its tail is long and thick. Which of these is improved by the shape of its tail?

Only one answer is correct among these 4 choices:
- swimming in the ocean
- blending in with rocks
- absorbing nutrients
- finding food inland

Could you tell me which one is correct?

swimming in the ocean