Some bacteria benefit mammals by with?

Differentiation of cells changes the nucleic information. true false

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.

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.