What kind(s) of cells can develop from unipotent stem cells? A. Only cells that are closely related to the stem cell
B. Only cells that are identical to the original stem cell
C. Any cell of the human body, but not cells of the placenta
D. Any cell of the human body or the placenta

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.

This is the diveristy of ecosystems natural communites and habits it is the variety of ways that species interact with each other and their environment

What are the possible blood types among the children of parents that are ab and ii? oa) types a and b ob) types a, b, and ab c) types a, b, and o od) types a, b, ab, and o