教程类 Missing link, hypothetical extinct creature midway in the evolutionary line amongst present day human
教程类 Water potential could be the possible energy of drinking water in the process as compared to pure water, when each temperature and stress are saved the same
教程类 Missing link, hypothetical extinct creature midway on the evolutionary line in between contemporary human
教程类 A concentration gradient takes place any time a solute is more concentrated in a single area than another