Which of the following is the main purpose of a human community? a. to meet needs through collective effort b. to analyze group behavior through observation c. to make and follow rules through political process d. to preserve culture and language

Alternative A.

Explanation:

The main purpose of a human community is to meet needs throught collective effort. Even though we end up having a political process, or any other, the main purpose of a human community is to live as community, helping each other, and fulfilling the human needs such as eating, sleeping, etc.

i am not in high school so i don’t know

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.