Answer:
It takes very little to to lose oxygenated blood to the brain.
Explanation:
Breathing does two things: Intake of oxygen and removal of carbon dioxide. If there is a respiratory emergency, for example, and overdose victim stops breathing, the carbon dioxide can build up, damaging parts of the brain, leading to forgetfulness, headaches, nausea, amnesia, fainting, brain damage, both minor and major, and in extreme cases, death.
Answer:
Please provide an image, we cant answer if you dont upload a screenshot.
Explanation:
There is evidence of items such as boar bristles being used as toothpicks for early people. There is also evidence of primitive dentures being made from a combination of items like animal bones, lead, ivory, and such in skeletons from previous time periods.