Variations that affect only the body cells of an organism, arise from environmental factors and are not passed on to offspring are called what?

1. Variations affecting body (somatic) cells, caused by the environment, are not heritable. 2. These are called somatic variations. 3. Germinal variations occur in germ cells and are inherited, which is the opposite and rules out option B. 4. So non-heritable body-cell changes are somatic variation, option A. _Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 19 Origin and Evolution of Life "Variation", p.286_