In biblical times no such fungicides were available.在圣经时代,当然不可能得到这样的杀菌剂.Several fungicides have been found to be absorbed from soil and translocated by plants.一些杀菌剂在土壤中被吸收,再转移到植物上.Alternate use of systemic and protectant...
The sex of the embryo is predetermined at fertilization.胚胎的性别早在受精时就决定了。...an ideal system for studying the development of the embryo...研究胎儿发育过程的理想方法Metabolic activity quickly develops in the cells of the embryo and the a...