1、The cactus has spiniform thorns to protect itself from predators.
仙人掌有尖刺形的刺来保护自己免受捕食者的伤害。

2、The spiniform process on the butterfly's wings acts as a defense mechanism against predators.
蝴蝶翅膀上的尖刺形结构起到了对抗捕食者的防御机制。