What determines whether or not a body system is likely to remain in a phylum over the course of evolution

Robert wants to know which fertilizer will work the best for his grass. what can he do to explore this inquiry?

In the united states there are strict fishing seasons and limits, but not all countries enforce similar laws. in bangladesh there are few if any fishing restrictions. what might be the reason for less restrictions in smaller countries like bangladesh? a) the united states is the only country worried about overfishing. b) the united states wants to limit the supply of fish to increase the price. c) bangladesh and smaller countries have an unlimited supply of fish in their coastal waters. d) small countries, such as bangladesh, are practicing subsistence fishing, taking only the fish needed to survive.

As an asteroid comes close to earth, it's name will change to? apex