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Primary production is constrained by the most limiting factor.
Massive amounts of wood are stored on the forest floor of old-growth temperate coniferous forests of
Pancreas—an endocrine and exocrine gland.
The diminishing effects on body weight of a low-calorie diet and a high-calorie diet.
Effects of the sympathetic and parasympathetic nervous systems.
Coral growth rings as an indicator of environmental change