Why is Dr. Tumpey's radical approach to "virus engineering" controversial? What are the potential benefits of this approach?

for example, no new evidence will demonstrate that the earth does not orbit around the sun (heliocentric theory), or that living things are not made of cells (cell theory), that matter is not composed of atoms, or that the surface of the earth is not divided into solid plates that have moved over geological timescales .

i think that it is c, d, and e, hope this

a compound light microscope is used to magnify objects in steps.  

hope it

segmented body, an exoskeleton made from chitin, and joint appendages.