The circulatory system - hemoglobin in the blood transports oxygen :)
Increasing melanin production.
Good luck! (:
~ Jasmine
During a decomposition reaction, a compound partitions into its components.
Answer: so one positive choice is going outside and going for a jog can increase your health and a negative choice can be have a unhealthy diet and that could lead to sickness or weakening the body.
Explanation:
hoped it help ^^
