Describe a sustainable method and a non-sustainable method currently available to meet each of the following survival needs. Explain why each method is sustainable or unsustainable non-sustainable
sustainable
Food

Shelter

Heat

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.

Liquid water turns into water vapor at which step in the water cycle

Ineed some everybody. the production of cells during mitosis into specialized function is called: recombination or differentiation