1. Roommate #1 was out of town for a 1 week conference in March starting on the Waning Crescent BEFORE the New Moon. What days was she gone?

1. march 16-23
2.march 23-30
3.march 9-16
4. march 2-9

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.

The model illustrates a process by which a substance is taken up by a cell

Which element provides strength to the exoskeleton of clams and oysters