Answer:Aging. ...
Family history. ...
Smoking. ...
Alcohol. ...
Sunlight and ionizing radiation. ...
Organic and inorganic chemicals. ...
Viruses and Bacteria. ...
Hormone therapy.
Explanation:
Answer:
A hope dis help
25. red
24. A. Temperature and Luminoscity
i say competition
i say competition because they are the same so they might fight alot for resources
Answer: hemoglobin