Examlex
What types of characteristics did Carolus Linnaeus use to define racial categories?
Krebs Cycle
A series of enzymatic reactions in the mitochondria of cells that oxidize acetyl CoA to carbon dioxide and water, generating ATP and other high-energy compounds.
Spiracles
Small openings on the surface of some animals, especially insects, which lead to the respiratory system, allowing for gas exchange.
Ventilation
The process of actively moving air or water over a respiratory surface.
Tracheal Tubes
Air-conducting tubes in the respiratory systems of some invertebrates, notably insects, facilitating gas exchange.
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