The rate at which producers use photosynthesis to store energy minus the rate at which they use some of this stored energy through aerobic respiration. Soil Horizon Mature soils, or soils that have developed over a long time, are arranged in a series of horizontal layers called _____.
3. Get your dog plenty of exercise. Your dog may be restless at night if he's not getting enough exercise during the day. Depending on your dogâs breed, age and fitness level, you may be able to tire him out in 30 minutes or 3 hours (or more).
Hours and Activity. There are no hard and fast guidelines for how much sleep a puppy should get, but it's generally a little more than a full-grown dog. For example, an adult dog who sleeps 12 to 16 hours each day would probably sleep closer to 15 or 20 hours per day as a 12-week-old puppy. While breed, age and size are all influential factors, so is activity.