Extra fertilizer in water can cause algae to reproduce and bloom out of control. what type of interaction in the earth system is this? atmosphere-lithosphere hydrosphere-biosphere hydrosphere-lithosphere atmosphere-biosphere

The diagram shows a fossil of an ancient whale skull and a skull of a present-day whale. the ancient whale is extinct and is believed to be an ancestor of the present-day whale. what do these skulls most likely show that supports darwin’s theory of evolution? all populations can adapt and survive. only some organisms have a common ancestor. populations change slowly over time. populations rapidly become extinct.

Archaebacteria use for movement. celia flagella pili cell walls

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.