Answer:
Cancer disease occurs when the abnormalities occurs during cell division of stem cells. Stem cells are those cells which are produced in the body and used by the body when the cells are older or get damaged. When the division of these stem cells are uncontrollable, cancer occurs which spread to the surrounding cells. When a large group of cancer cells grow in size, it turns into tumor.
Answer:
One Idea was the appreciation that the age of the Earth was much greater than had hitherto for been imagined.
Answer:
Regions of the digestive system can be divided into two main parts: the alimentary tract and accessory organs.
Explanation:
It would slow down in the stage of growing or
