The blood has to circulate throughout our bodies to give our cells oxygen. I think it's the Eskimo Tribe in Alaska as they are able to eat the whale meat and they don't need as much oxygen for their blood cells.
Answer:
A carcinogen can be described as any substance which can lead to cancer.
Various types of pollution produce certain kinds of ions such as metal ions which are capable of producing cancer in humans.
Studies have shown that toxic metals from waste when disposed in lakes from industries or plant areas causes the toxic metals to get accumulated in the bodies of water animals such as the fishes. These organisms when consumed by humans can cause cancer.
Answer: During Puberty
Explanation: Once puberty begins, the body starts to produce different chemicals that activate the testes to make testosterone and the ovaries to produce estrogen.
