So we wanted to test plant v animal.

所以我们想测试植物和动物。

It was Darwin again who tested plants bending to the light.

又是达尔文测试出了植物朝光弯曲。

Peseshet explains her fail-safe pregnancy test: plant two seeds: one barley, one emmer.

Peseshet 解释了她的故障安全妊娠试验：种下两颗种子： 一颗大麦， 一颗二粒小麦。

He begins to test the plant to see it can produce color or paper or other materials.

他开始测试这种植物，看看它能生产出颜色、纸张或其他材料。