Physical adaptations for survival

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Homeostasis
the process by which an organism's internal environment is kept stable in spite of changes in the external environment.
Ectothermic
referring to an animal whose body temperature is determined by the temperature of the environment
Counter current exchange
when adjacent fluids flow in opposite directions and maximise transfer rates of heat/solutes
Renin
enzyme that is produced by the kidney; important for blood pressure and volume regulation; catalyzes the conversion of circulating angiotensinogen to angiotensin I
Dentrites
Branches that reach out from the cell body and receive signals from surrounding neurons
Evaporative cooling
The process in which the surface of an object becomes cooler during evaporation, owing to a change of the molecules with the greatest kinetic energy from the liquid to the gaseous state.
Homeothermic
maintaining nearly constant body temperature over a wide range of environmental temperatures
Internal Environment
the environment that includes the elements within the organization's boundaries
Cochlea
A coiled, bony, fluid-filled tube in the inner ear through which sound waves trigger nerve impulses.
Behavioural
type of adaptation; what organism does to survive in unique conditions
Free water
water that drains out of the soil after it has been wetted