Describe the differences between mixtures (heterogenous, homogenous) and solutions. Provide examples of each.

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 happens during the experiment stage of the scientific method

How do bacteria protect their genetic material and cytoplasm during harsh conditions