Catabolism is the process where a cell takes a complex molecules and breaks it down into simpler molecules. one catabolic process necessary for cells is the citric acid cycle. what is the role of water in the citric acid cycle of cellular respiration?

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.

Which of the following is an effect of the uneven heating of the earth by the sun? a sea breeze a land breeze a convection current all of the above

What is the anatomical location of the kidneys to the intestines.