i need homework help. =[ please help. thankyou. -tiffany
2007-05-01 11:31:16 · 4 answers · asked by Taffyx3 1 in Science & Mathematics ➔ Biology
Which cells?
Human cells get food and oxygen delivered to them by the bloodstream; these materials diffuse out of the capillaries to the body's cells.
In a larger sense, people eat their food, digest the food, and absorb the food into the bloodstream which carries it to the cells.
We breathe in air; oxygen diffuses from air sacs (alveoli) in the lungs into the capillaries for delivery to the body's cells.
2007-05-01 11:35:35 · answer #1 · answered by ecolink 7 · 0⤊ 0⤋
We had a good standard of living in my tribe, and were one of the more prosperous nations. We were farmers, and grew corn, beans, melons, peppers, squash, and had extensive orchards. There was also a vast inter-tribal trading network, so goods from all over the continent might be obtained. When our people got sick, they called the nearest healer, and used herbal remedies, many of which are still in use today, including purges, and aspirin made from willow-bark. There are herbal medications which have anti-inflammatory and anti-bacterial properties, as well as fever reducers. (sure beat the heck out of leeches and bleeding patients into unconsciousness, which was the European practice) "Advanced emergency medical care"??? This did not even exist in the 16th century. We did the best we could, same as everyone else on the planet at that time. Our standards of living and hygiene were better than Europeans of the time. Our people bathed daily, and expected to live to old age. (The grandparents and elders were -and still are-highly esteemed and take a big role in assisting with rearing their grandchildren and great grandchildren) Hygiene included daily bathing, washing the body and hair with soap and then oiling it, and frequent sweat baths. We had a form of air conditioning, which could lower interior temperatures by 10 degrees. Some tribal nations had cities with pressurized plumbing. The elderly, the sick, the poor, and the orphaned were the responsibility of the entire community to care for.
2016-03-18 22:10:02 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Through the bloodstream.
2007-05-01 11:33:48 · answer #3 · answered by Anonymous · 0⤊ 0⤋
The booldstream and cellular respiration
2007-05-01 12:29:15 · answer #4 · answered by Anonymous · 0⤊ 0⤋
The bloodstream throughtout the body......aka arteries...i think......nvm im positive
2007-05-01 11:36:31 · answer #5 · answered by Anonymous · 0⤊ 0⤋