Answer: Cancer is the uncontrolled growth of abnormal cells in the body. Cancer develops when the body's normal control mechanism stops working. Old cells do not die and instead grow out of control, forming new, abnormal cells. These extra cells may form a mass of tissue, called a tumor.
Explanation: I looked it up on safari
The best description about the brain stem is: it is the most important organ of our body's survival. It connects the brain and the spinal cord, controls the vital organs like the lungs and heart and it also coordinates the many essential body reflexes.
Answer:
Atoms and molicules
Explanation:
Positive, negative, and nutrol atoms mix together and make up everything
the world and that also includes making living things.
Answer:
It's not A or B. I hope that helps you a bit.
Explanation:
Algae produces a estimated 30-50 percent of the net global oxygen .