What types of behaviors were exhibited with high health ratings in each trial? what types of behaviors were exhibited with low health ratings for each trial? 4. based on the results in the experiment, what can you infer are the habitat characteristics necessary to provide the highest health rating? explain why?

The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.

Antoine manages a number of apartment buildings that use natural gas for heating, cooking, and laundry. the scatter plot shows the correlation between the outside air temperature and antoine's natural gas bill. which type of correlation does the plot illustrate?

The same agricultural practices are used in every country of the world. select the best answer from the choices provided t f