Which of the numbered labels is pointing to an energy producing organelle in the diagram?

What material did the moon come from?

Aresearcher created three groups based on participants bmi: normal weight, overweight and obese. the hypothesis being tested is that the three groups differ in the mean number of artificially sweetened drinks consumed weekly. which statistical test might the researcher use, assuming a reasonably normal distribution of values.

The sea slug that considered to be a photosyntheesizing animal