A is death prior to the complete expulsion or extraction from its mother in a hospital facility, of a product of human conception (fetus and placenta), irrespective of the duration of the pregnancy and without any signs of life.

A fetal death is death prior to the complete expulsion or extraction from its mother in a hospital facility, of a product of human conception (fetus and placenta), irrespective of the duration of the pregnancy and without any signs of life.

Explanation:

Due, to lack of nutrition or care some mothers loses there new born before the delivery, while most of the time such miscarriages results in the death of the fetus that is yet to be developed properly inside the womb of its mother. It all can happen due to mental, emotional, or physical stress on the female. However, it can be prevented by providing proper care to the mother and having the best of procedures to deal with any situation faced during the development of the fetus or offspring during the tenure of pregnancy.

x would be the most and the least would be y because there are more fruit   and seeds than flock z has insects