A collection of cells that grow abnormally and are capable of spreading to other parts of the body

Question

Quizplus · Accepted Answer

A malignant tumor is a collection of cells that grow abnormally and have the ability to spread to other parts of the body, also known as metastasis. This is the definition of cancer.

The other choices are: 
A) Carcinogen - a substance or agent that can cause cancer 
C) Carcinoma - a type of cancer that starts in cells that make up the skin or the lining of organs 
D) Stem cell - a type of cell that can differentiate into various types of cells in the body 
E) Cancer promoter - a substance or agent that enhances the growth or spread of cancer cells, but does not cause cancer on its own.

A Collection of Cells That Grow Abnormally and Are Capable