Examlex
How many unpaired electrons are there in a complex ion having a d5 electron configuration and an octahedral geometry in the weak-field case?
Dorsal Hollow Nerve Cord
A distinctive feature of chordates, forming the central nervous system's basis.
Endothermic Animals
Organisms that can regulate their body temperature through internal metabolic processes, often referred to as warm-blooded animals.
Four-Chambered Hearts
A heart structure consisting of two atria and two ventricles, found in mammals and birds, allowing for efficient oxygenation of blood.
Air Sacs
Air sacs are part of the avian respiratory system, providing birds with the ability to engage in highly efficient gas exchange.
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