What are the seven 7 levels of
classification?

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.

Cells destroy body cells infected by a virus or bacteria.

Which organelle breaks down sugar molecules that supply energy to the cell ?