Polyzoa

例句：

1. 1. Polyzoa are a type of marine invertebrate that live in the ocean floor.
   多毛虫是一种生活在海底的海洋无脊椎动物。
2. 2.The discovery of new species of polyzoans has sparked much interest in marine biology.
   新物种的发现激发了人们对海洋生物学的兴趣。
3. 3. Polyzoans have unique adaptations to their environment, such as their ability to secrete mucus to protect themselves from predators.
   多毛虫具有适应其环境的特定适应性，如分泌粘液以保护自己免受捕食者的伤害。