He separated the birds by the shapes of their beaks.

VOA: special.2009.12.16

It's able to do that because there are cells like this particular cell that have shapes that are suited to their function.

之所以这样是因为它的细胞像这个,染色细胞一样具有与功能相适应的外形

耶鲁公开课 - 生物医学工程探索课程节选

It's able to do that because there are cells like this particular cell that have shapes that are suited to their function.

之所以这样是因为它的细胞像这个,染色细胞一样具有与功能相适应的外形

耶鲁公开课 - 生物医学工程探索课程节选