Primary Consumer: A heterotrophic, herbivorous organism that feeds directly on a primary producer. Urchins are a primary consumer as they feed on kelp. See also heterotroph, food chain; compare secondary consumer.

 

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Primary Consumer: A heterotrophic, herbivorous organism that feeds directly on a primary producer. Urchins are a primary consumer as they feed on kelp. See also heterotroph, food chain; compare secondary consumer.

Consumers: The higher levels in a food pyramid; consist of primary consumers, which feed on the producers, and secondary consumers, which feed on the primary consumers.

Secondary Consumer: A heterotrophic, carnivorous organism that feeds on a primary consumer. Herring feeding on zooplankton are an example of a secondary consumer. See also food chain, heterotroph, primary consumer.

Primary Lenders: Originators of real estate loans including commercial banks, savings and loan associations and mutual savings banks.

Primary Key: A set of one or more values in a database that uniquely identifies a record in a table.

Primary Macronutrients: Elements that plants require in relatively large quantities: nitrogen, phosphorus, and potassium.

Primary Market: If you buy stocks or bonds when they are initially offered for sale, and the money you spend goes to the issuer, you are buying in the primary market. In contrast, if you buy a security at s . . . View Full Definition

Primary Meristems: The apical meristems on the shoot and root apices in plants that produce plant primary tissues.

Primary Growth: Cells produced by an apical meristem. The growth a plant by the actions of apical meristems on the shoot and root apices in producing plant primary tisues.

Primary Financial Statements: The balance sheet, income statement, and statement of cash flows, used by external groups to assess a company's economic standing.