The property of Henrietta Lack's cells that was most unusual when they were grown in the laboratory was that THEY CONTINUE TO DIVIDE AND MULTIPLY AFTER DECADES OF CULTURING.
Henrietta Lack's cells refers to the sample of cancerous cells that were extracted from a cancer patient named Henrietta for examination in the laboratory. The cells were cultured in the laboratory and they were used for research purposes. One surprising thing that scientists discovered about the cells is that the cells have the ability to continuously divide and multiply even many years after extracting them from their source.<span />
Answer:
The first historical use of biomaterials dates to antiquity, when ancient Egyptians used sutures made from animal sinew. The modern field of biomaterials combines medicine, biology, physics, and chemistry, and more recent influences from tissue engineering and materials science.
Explanation:
For more info...visit
https://www.nibib.nih.gov/science-education/science-topics/biomaterials#:~:text=The%20first%20historical%20use%20of,tissue%20engineering%20and%20materials%20science.
Answer:
Troposphere is the lowest layer of Earth’s atmosphere that has undergone a large increase in temperature due to the presence of greenhouse gases.
Explanation:
Troposphere (0 to 12 km) where we live is the lowest layer of earth's atmosphere, which is closest to the earth's surface contains half of the atmosphere. Here most clouds are found and almost all weather occurs. Atmosphere contains approximately 78% of nitrogen , 21% of oxygen and 0.9% of argon. Gases like carbon dioxide, nitrous oxides, methane, ozone and the water vapor constitutes the rest of the atmosphere. Many small particles called aerosols are also there which include dust, spores, pollen, volcanic ash, smoke etc.The greenhouse effect is a natural phenomenon that keeps the temperature on the earth suitable for supporting life. The greenhouse gases includes both natural and man-made gases like carbon dioxide
, methane, nitrous oxide, chlorofluorocarbons, hydrochlorofluorocarbons, ozone, water vapour. They absorb radiation in the atmosphere and create the green house effect. The thermal infrared radiation emitted by the Earth’s surface and the atmosphere is absorbed by greenhouse gases. They trap heat within the surface-troposphere system preventing it from escaping back into space. This is called the greenhouse effect, which increases the temperature of the lower atmosphere.The increase in the atmospheric concentrations of greenhouse gases due to human activity has caused an increase in the natural greenhouse effect. As a result, the atmosphere is trapping too much heat which increases the temperature of the Earth.
groundwater discharge: the moving from the subsurface to the surface.
streamflow: water flowing into a stream or a river
water storage: the fresh water of earth that is kept in ice caps, glaciers, and snow.
desublimation: the change from gas straight to a solid.
plant uptake: when water that has nutrients in it gets inside the roots and climbs up to the plant tissue.
<span>206....................</span>
