The catalysts in our bodies are called lipids carbohydrates enzymes nucleic acids

the trait of personality falls in the middle of the diagram because personality is a mixture of ones nature and environment.

exposure to hazardous carcinogens and toxic substances can cause breathing problems, such as copd and various types of cancer. it also increases the risk of heart attacks and strokes and has serious (but no less unattractive) side effects, such as aging, yellow teeth, a terrible smell and damage to the vocal cords.