Cellular respiration. Cellular respiration is a process by which the simple sugar glucose is oxidized (combined with oxygen) to form the energy-rich compound adenosine triphosphate (ATP).
1 Progressive strip clear cut system: A silvicultural system in which, clear felling is done in the form of strips which progress successively in one direction across the regeneration area. 2  The crop produced is even-aged considering each strip as a compartment.lear felling system. The clear felling system is a silvicultural system in which equal or equiprodcutive areas of mature crop are successively clear-felled in one operation to be regenerated most frequently, artificially but sometimes naturally also.
A time-lapse panorama of a rock climber abseiling off a climb. An abseil (/ËÃ¦bseÉªl/ or /ËÉËpzaÉªl/; from German abseilen, meaning to rope down), also called a rappel after its French name, is a controlled descent of a vertical drop, such as a rock face, using a rope. Climbers use this technique when a cliff or slope is too steep and/or dangerous to descend without protection.