The constraint or budget line, in the diagram below, represents the possible levels of consumption in the two periods given the individual's level of present income, future expected income and the prevailing interest rate 'r'.
Wasp, common name applied to most species of hymenopteran insects, except bees and ants. Insects known as wasps include the sawflies, the parasitic wasps, and the stinging wasps, which are the best known. About 75,000 species of wasps are known, most of them parasitic. Characteristics.
Wasps should be regarded as beneficial insects. They eat many types of insect pests. Although they can sting, they will not do so unless provoked. Queen wasps can lay as many as 2,000 eggs a day and the wasp larvae are fed on caterpillars, spiders and aphids which the worker wasps collect for them.lthough they can sting, they will not do so unless provoked. Queen wasps can lay as many as 2,000 eggs a day and the wasp larvae are fed on caterpillars, spiders and aphids which the worker wasps collect for them.