Which conditions are required for natural selection? check all that apply

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.

Which characteristics are typical of a human population in the postindustrial stage?

In what ways does the study of human population differ from the study of wildlife ecology