Sort the following words to complete the sentences in the paragraph below. dna wraps around special proteins called which form loops of dna called these coil and stack together to form fibers called this in turn forms larger loops and coils to form word bank: nucleosomes; chromatin; histones; chromosomes

In this case, the statement that people who exercise for an hour may have lower cholesterol levels is .

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.

Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.