Population growth slows as birth rates drop and approach death rates. populations grow slowly (or not at all) despite high birth rates because death rates are similarly high. populations stabilize when birth rates and death rates are similarly low. the large gap in birth and death rates leads to big increases in population.

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.

What do transitional fossils best support?

How does climate change affect producers?