Which one of the following is an example of a universal theme?

a. rice: everyone has to eat to survive
b. world war ii: it involved countries around the globe
c. vietnam war: it involved more than one country
d. suffering in war: it is explored by all cultures

I think that the correct option is D. suffering in war: it is explored by all cultures.

A universal team refers to an idea that applies to anyone regardless of cultura ldifferences, or geographical location. Universal themes are ways to link ideas across all disciplines. It is a central idea about the human condition.  It is a generalization about life or human nature; they are related to basic  human concerns. A universal theme with generalizations can serve as the organizing element of unit of study.

The prefix that changes the meaning of bacterial from "relating to or caused by bacteria" to "preventing bacteria" is anti-

The prefix anti means “against,” “opposite of,” “antiparticle of,” used in the formation of compound words ( anticline ); used freely in combination with elements of any origin ( antibody; antifreeze; antiknock; antilepton ).

Prefixes are letters which added to the beginning of a word in order to make a new word with a different meaning. Prefixes can, for instance, create a new word opposite in meaning to the word the prefix is attached to.