Of the following steps in a scientific investigation, the last to be done is usually: a. experimentingb. observingc. producing a modeld. hypothesizing

1. in what ways have non-native species been beneficial? 2. what are some of the hypotheses for the collapse of honeybee colonies? 3. distinguish between regional and functional extinction. 4. why is it difficult to measure background extinction rates? 5. what three factors are most important in causing extinction rates to climb?

Your client has just been prescribed oral iron. why would you advise this client to avoid taking their medication with coffee, tea, eggs, or milk?

A. describe the scientific method, using pasteur's swan-necked flask experiment as an example.