People were able to specialize in specific jobs because

The process by which natural forces move weathered rock and soil brim one place to another is called

Plz ! a scientist wants to produce a cow that makes a particular human protein in it’s milk the desired protein causes blood to clot and can be used to treat hemophilia (a blood clotting disorder). which of the following would be best for the scientist to use? a. genetic crosses. b. cloning. c. selective breeding. d. genetic engineering.

Explain how the political influence of african americans leaders became weaker.