Groups that were originally viewed as a culturally distinct multiband population that imagined itself as one people descended from a common ancestor, and are currently described as an indigenous group with its own set of loya.

Tribe

Explanation:

A tribe is a group or people with similar ancestors, customs and traditions. This people are recognized as one or a form of social group because they share cultural history and have more in common. Tribes usually don't have leaders.

there are treatment options for depression (mdd) that may work for you. one way of treating depression may be to affect the levels of certain chemicals that brain cells use to communicate, called neurotransmitters. scientists believe that certain neurotransmitters may be out of balance in depression.

although the exact way depression medications shown to ease overall depression symptoms in some people work is unknown, scientists think that some medications work by affecting the levels of a neurotransmitter called serotonin in the brain. other treatments work by affecting the levels of other neurotransmitters like norepinephrine or dopamine.

yes, since there is a positive and a negetive if the positive and negitive wasn't there wouldn't a flow electricity in it.