Hibernation and migration
Suzie had blood cancer which stiffened her body until she became paralyzed, we can now prevent this by taking healthy blood and filtering out the the cancer in the blood.
A, C, D i believe are the answers...
Migration is affected by various factors like age, sex, marital status, education, occupation, employment etc. People migrate to those places where they have better facilities of health services, educational services, transportation and communication and the life is easier.
