Which two statements describe organ systems working together to remove wastes from the body?

The world’s richest 20 percent of the population consume about what percentage of all goods and services in a given year?

Which action is characterized of mental illness 1.brushing teeth every hour because ones mouth feels dirty ? 2. forgetting to eat breakfast on a busy day? 3.crying three days over a relationship breakup? 4.feeling embarrassed about going to school after failing in front of friends?

Iwill mark you brainlest if you answer this question