The human nervous system starts to form very early in the embryo’s development. At the end of the gastrulation phase, an elongated structure, the notochord, is laid down. The embryo thereby changes from a circular organization to an axial one—a critical step in the development of its nervous system.
D. As time progressed and different fossils from different time periods become fossilized, they show how their species evolved and changed over time.
Answer: Predicting the size, location, and timing of natural hazards is ... of understanding that can be used to predict natural hazards
Explanation:
This variation is an example of disruptive selection. The other choices given in the question are incorrect and can be easily neglected. The correct option among all the options that are given in the question is the fourth option or the last option. I hope that this is the answer that has come to your desired help.