Pigs with an added spinach gene produce more healthful fat is a false statement.The gene somatotropin can change a mouse into a rat.
mutation
mutation
Genius of Britain The Scientists Who Changed the World - 2010 is rated/received certificates of: Australia:PG
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Thermometer! Thermometers were actually around that long ago, well, not as we see them now but still it was a thermometer!
I think that scientists have changed the classification system since it was first developed because, the world has grew example technology and they wanted to update it. I also think scientists have changed the classification system since it was first developed to make it easier.
they have because they found energy cells
Cyanobacteria produced oxygen.
They relied more on evidence.
Scientists are often trying to find out whether certain factors changed or remained the same.
I think the answer is C
Ozone hole has changed. It changes every year with the CFC content in air.