Any change in the DNA of an organism is known as a mutation. The tendency to develop cancer is thought to be hereditary. Anything that damages cells will cause cancer. Carcinoma is a type of cancer that occurs in skin and nerve cells. The species in a scientific name is never capitalized.
Photosynthesis is the chemical process by which green plants use light energy to produce food.
All viruses must have a host cell to reproduce. Strep throat is caused by a virus. All members of the plant kingdom contain chlorophyll. Xylem is composed of straw-like tubes conducting water and minerals upward in a plant. Growing regions where cells divide in plants are known as tropisms.