Examlex
A(n) ____ is a situation in which treatments have no effect.
Anabolism
The aspect of metabolism in which simpler substances are combined to form more complex substances, resulting in the storage of energy, the production of new cell materials, and growth. Compare with catabolism.
Parabronchi
The small, air-filled tubes in the lungs of birds through which air flows for highly efficient gas exchange.
Countercurrent Exchange
A mechanism occurring in nature and designed systems wherein two flowing bodies of water, air, or other substances move in opposite directions of each other to maximize the transfer rate of heat or matter.
Concurrent Exchange
A process in which two substances, such as blood and air in the lungs, flow in opposite directions to maximize the transfer of gases or other molecules.
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