Which particle of an atom has the least mass?
proton, nucleus, neutron, electron?

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.

What is the approximate time of death of the body temperature is 29.4 degrees celsius

When lactate builds up in a runners muscles it causes a burning sensation what causes this to occur