Which characteristics do North American, South American, Central American, and Caribbean regions share? Select two options. Iroquoian languages are spoken. Christianity is the most widely practiced religion. Portuguese is one of the most widely spoken languages. Native cultures have had important influences on modern cultures. People are working to preserve native culture by creating media in Quechua.

1. Christianity is the most widely practiced religion

2. Portuguese is one of the most widely spoken languages

Explanation:

The two options mentioned above are the characteristics that the regions share.

This is because, Brazil which is the one of the south American countries is known to be the country with the highest number of Catholic people. And it will be discovered that Christianity is the most popular religion in those regions.

Portuguese is the widely spoken language because most of the countries in those regions were colonised by Portugal. For example the official language in Brazil is Portuguese.

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.        

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