Examlex
Interferon can act like a paracrine hormone that allows infected cells to send an alarm to other nearby cells.
Market System
An economic system where decisions regarding investment, production, and distribution are based on supply and demand, with prices serving as signals to participants.
Circular Flow Diagram
An illustration showing the flow of resources from households to firms and of products from firms to households. These flows are accompanied by reverse flows of money from firms to households and from households to firms.
Revenue
Revenue is the total amount of money received by a company for goods sold or services provided during a certain period of time, before any expenses are deducted.
Expenditures
The total amount of money spent by a household or country on consumption and services.
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