变浅

Closely associated with the benthic community are organisms collectively called periphyton or aufwuchs.

但当水变浅时，生物相会改变。

This indicats that gamma ray irradiation can increase the frequency of mutations and produces special types of flower in Godetia grandiflora breeding.

花色变异颜色变浅，甚至变为白色。花瓣变异可原来的单瓣变为重瓣花。