Joe Dunman's Schoolhouse was the only school in that school community, and it reported a student population of 13 in 1883. Harris County Common School Districts: In 1884, Texas passed the Common School Law, which provided for a system of county schools to be established across the state.
1 9. 2  Disadvantages Of Nanoparticlesï Small size & large surface area can lead to particle aggregation .ï Physical handling of nano particles is difficult in liquid and dry forms.ï Limited drug loading.ï Toxic metabolites may form.3  10. Disadvantages Of Nanoparticlesï Small size & large surface area can lead to particle aggregation .ï Physical handling of nano particles is difficult in liquid and dry forms.ï Limited drug loading.ï Toxic metabolites may form. 2  10.
The main advantage is that you can derive a greater variety of cell types. Embryonic stem cells, as they are called, have the potential to be any body cell. Adult stem cells on the other hand have partly committed to different cell fates. So, for example, you can only make muscle cells from adult stem cells found in muscle. The disadvantage to using embryonic stem cells, is that they have the potential to become cancerous. This has not been observed with adult stem cells.