Nanotechnology offers the means to target chemotherapies directly and selectively to cancerous cells and neoplasms, guide in surgical resection of tumors, and enhance the therapeutic efficacy of radiation-based and other current treatment modalities.
D. Size of the oxygen atom compared to the hydrogen atom
Well, A humans brain is bigger than a Sheeps brain, And a human has more Ridges and Contours also, Hope this helps
As heat and pressure increase, ductile deformation becomes more likely