taxonomy grade

例句：

1. 1. The classification of species is crucial for understanding ecosystems.
   物种的分类对于理解生态系统至关重要。
2. 2. The new taxonomy will help us better understand the diversity of life on Earth.
   新的分类系统将帮助我们更好地理解地球上生命的多样性。
3. 3.The taxonomy grade is based on the number of chromosomes in the organism.
   分类等级是基于生物体染色体的数量来确定的。