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In insects and spiders,__________ take up fluid,uric acid,and solutes from the blood and deliver them to the gut.
Living Standards
Refers to the level of wealth, comfort, material goods available to a person, group, or nation, similar to the standard of living.
Human Capital
The collective skills, knowledge, and other intangible assets of individuals that can be used to create economic value.
Productivity
A measure of the efficiency of production, often calculated as the ratio of output to inputs in the production process.
Standard of Living
The amount of riches, ease, physical items, and basic requirements possessed by a distinct class or region.
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