4.
Energy is defined as the ability to
do work
change form
capture sunlight
grow plants

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 advantage of solar energy?

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species