Two organisms that share several classifications level's will be

Closely related; characteristics.

Explanation:

Taxonomy can be defined as the process of naming, classification and description of living organisms such as plants and animals.

Hence, two organisms that share several classification levels will be closely related and have many characteristics in common such as number of legs, eyes, etc.

developed and developing countriescountries are divided into two major categories by the united nations, which are developed countries and developing countries. the classification of countries is based on the economic status such as gdp, gnp, per capita income, industrialization, the standard of living, etc. developed countries refers to the soverign state, whose economy has highly progressed and possesses great technological infrastructure, as compared to other nations.