Water & Nutrients. Like humans and animals, plants need both water and nutrients (food) to survive. Most all plants use water to carry moisture and nutrients back and forth between the roots and leaves. Water, as well as nutrients, is normally taken up through the roots from the soil.
Changing from puppy food to adult food depends on the size of your dog as an adult. If he is a small breed and will not exceed 30 pounds, he is mature at 10 to 12 months old. Some small breeds are mature before 10 months of age. Medium breeds are dogs that do not exceed 80 pounds at full growth.
The energy needs of puppies are twice that of adult dogs. BananaStock/BananaStock/Getty Images. You want your puppy to grow into a healthy adult dog, so feeding him the appropriate dog food for his age is important. There is a difference between puppy and adult food because puppies are growing rapidly.uppy food is more nutrient dense than adult food. If an adult dog is fed puppy food, he is most likely going to gain weight and may develop orthopedic problems. The development of most dogs to their adult size is between 10 months to two years.