Answer:
The answer is B) Beringia
Explanation:
The Bering land bridge is a postulated route of human migration to the Americas from Asia about 20,000 years ago. An open corridor through the ice-covered North American Arctic was too barren to support human migrations before around 12,600 BP.
Answer:
It can be harmful in many ways
Explanation:
When a mutation alters a protein that plays a critical role in the body, it can disrupt normal development or cause a medical condition. A condition caused by mutations in one or more genes is called a genetic disorder. In some cases, gene mutations are so severe that they prevent an embryo from surviving until birth.
The electron transport chain (aka ETC) is a process in which the NADH and [FADH2<span>] produced during glycolysis</span>
Hypoxia can result in lung damage due to trauma and can also happen if the person has bronchitis or pneumonia. hope this helps:)