Examlex
A cluster of tumor cells that produces and secretes growth factors to induce surrounding cells to grow and divide is showing which type of cell-to-cell signaling?
Solar Power
The conversion of energy from sunlight into electricity, either directly using photovoltaics (PV), indirectly using concentrated solar power, or a combination.
Geothermal Power
Renewable energy derived from the heat of the Earth's interior, used for heating and generating electricity.
Biofuels
Fuels that are derived from biological sources, such as plants and algae, as an alternative to fossil fuels.
Urban Sprawl
The uncontrolled expansion of urban areas into the surrounding countryside, often characterized by low-density residential housing, single-use zoning, and increased reliance on the private automobile.
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