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Wood first appeared in plants called progymnosperms.
Some male birds and mammals congregate in communal courting grounds called leks.
Electrocardiography. (a) Electrodes are placed on the patient’s chest to record the electrical event
Sensory and Emotional Components of Pain
The Land Ordinance of 1785 called for surveying and dividing the Western Territories into square mil
Detonation is a secondary ignition of the air–fuel mixture. It is also called spark knock or ...