phyla

例句：

1. 1. The classification of life forms into phyla is crucial for understanding evolution.
   将生命形式分类为界对于理解进化至关重要。
2. 2. Phylogenetics is a field of study that examines the relationships between different species.
   生物进化学是研究不同物种之间关系的学科。
3. 3. Within the phylum of animals, there are numerous species that have adapted to their environments.
   在动物界中，有许多物种已经适应了它们所处的环境。