Wendy washes her hands with antibacterial soap and water. Then she touches the agar in a petri dish with her finger. Agar is made of a type of food that would help bacteria grow. Marcus, April, and Davis wash their hands with three different kinds of antibacterial soap. The petri dishes are kept warm overnight to allow bacteria to grow. The next day the students count the number of bacterial colonies in each dish. What would be the expected outcome of this experiment?

What is the powerhouse of the cell?

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.

What volume of a 0.25 m solution can be made using 0.55 moles of ca(oh)2