According to the passage, why is the shape of sea cucumbers important?
A. It makes them attractive to fish.
B. It helps them to protect themselves from danger.
C. It helps them to digest their food.
D. It makes it easier for them to move through the mud.
* Đáp án
B
* Hướng dẫn giải
Đáp án B Thông tin: Usually the creatures are cucumber-shaped-hence their name-and because they are typically rock inhabitants, this shape, combine with flexibility, enables them to squeeze into crevices where they are safe from predators and ocean currents.