12. Answer in a sentence III

 

The process where the Connective tissue Cellscancerous cells migrate to the distant parts of the body and affect the existing tissuesnew tissues is known as metastasis.

 

 

 Insulin deficiency is caused by the destruction of β – cellsα-cells  in the liverpancreas and is characterised by abnormally lowhigh blood glucose levels due to insufficient insulin secretion.