Examlex
Determine the sequence of the following events in a cell after exposure of the cell to a chemical signal. (1) increased synthesis of a protein
(2) the chemical signal combined with a cytoplasmic receptor
(3) an increase in the nuclear concentration of the chemical
(4) an increase in mRNA synthesis
(5) genes are activated
Water Scarcity
Water scarcity is a situation in which the available water supply is insufficient to meet the demands of water use within a region.
Runoff
The portion of rainfall, melted snow, or irrigation water that flows across the ground's surface and is not absorbed into the soil, often reaching rivers, lakes, and oceans.
Increasing Numbers
A term indicating a situation where the quantity or amount of a certain entity is growing over time.
Three Gorges
A region along the Yangtze River in China known for the Three Gorges Dam, the world's largest hydroelectric power station by total capacity.
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