What does regular participation in sports do to your body

How do nicotine and tobacco cause cancer? by decreasing blood-sugar levels by damaging or changing a cell's dna by increasing heart rate by increasing phlegm and mucous production

Wjat are substances intentionally added to food to produce a desired effect?

The nature–nurture issue refers to the debate over the relative contributions that make to the development of psychological traits. a.introspection and nerve cell activity b.unconscious and conscious motives c.behavior and mental processes d.genes and experience