Answer:
All plasmids we manufactured are free of animal-derived materials and can contain low levels of endotoxin (<100EU/mg, on request). This process is designed to meet our customers’ diverse downstream applications such as transfection, antibody preparation, vaccine, and gene-therapy research, etc.
True because excretory is like sweat and you sweat through your skin- more specifically the pores in your skin
They are located in the liver the wall of the sinusoids.
