In economics, the three stages of production are increasing average product production, decreasing marginal returns and negative marginal returns. These stages of production apply to short-term production of goods, with ... More » World View Social Sciences Economics

The three stages of cell signaling are reception, transduction and response. According to Hartnell College, humans are constantly receiving and interpreting signals from the environment in the form of light, heat, odors,... More » Science Biology Cells

Photosynthesis takes place in two stages: the light reactions and the dark reactions. The light reactions take their name because they require the presence of direct light, while the dark reactions do not have the same p... More » Science Biology Botany
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The law of variable proportions is an economics term that describes when a business increases one factor of production while keeping another factor constant, causing the increase of production levels created through thes... More » World View Social Sciences Economics

In economics, land, labor, capital and entrepreneurship are known as the four factors of production. They are given this label because each plays a role in the production of business and industry that impacts the economi... More » World View Social Sciences Economics