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Ecology: Concepts and Applications was written for students taking their first undergraduate course in ecology. The authors have assumed that students in this one-semester course …

101 SIMPLE WAYS TO MAKE EVERY DAY A SPECIAL DAY! Children who move their bodies as part of the learning process are more stimulated and alert-and they retain more of what they are …

Humidity is the presence of water vapor in the air. In view of its effect on human health and the physical qualities of materials, humidity must be measured and controlled. …

To be responsible for their acts, agents must both perform those acts voluntarily and in some sense know what they are doing. Of these requirements, the voluntariness condition has …