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Chapter 40
Unit Four
25
Biology
Undergraduate 2
12/02/2014

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Term
Aqueous Media
Definition
A medium in which water is the solvent
Term
Specialization
Definition
Specializing cells for specific functions
Term
Interstitial
Definition
Space between cells
Term
Epithelial Tissue
Definition
Sheets of cells that line body cavities, organs, and external surfaces
Term
Connective Tissue
Definition
Bind and support other tissues
Term
Muscle
Definition
Large tissues that contract
Term
Nervous
Definition
Fast acting internal communication system
Term
Endocrine
Definition
Internal system of communication using hormones
Term
Homeostasis
Definition
The steady "happy place' for the body
Term
Conformer
Definition
Internal environment adjusts to external environment
Term
Regulator
Definition
Internal environment is independent of the external environment
Term
Thermoregulation
Definition
Maintenance of internal body temperature within a tolerable range.
Term
Endotherm
Definition
Heated by own metabolism
Term
Ectotherm
Definition
Heated by external forces
Term
Radiation
Definition
Emission of electromagnetic rays from anything warmer than absolute zero
Term
Evaporation
Definition
Process when liquid changes to gas
Term
Convection
Definition
Mass movement of warmed air from one surface to another
Term
Conduction
Definition
Direct transfer of heat between molecules in direct contact
Term
Insulation
Definition
Keeping in heat
Term
Basal Metabolic Rate
Definition
Metabolic rate when at rest
Term
Vasoconstriction
Definition
A decrease in the diameter of the blood vessels
Term
Vasodilation
Definition
An increase in the diameter of the blood vessels
Term
Counter Current Heat
Definition
Exchange of heat between two fluids flowing in opposite directions
Term
Metabolic Rate
Definition
Amount of energy that an animal uses at one time
Term
Circadian Rhythms
Definition
Physiological 24 hour clock that is unaffected by outside cues
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