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.
Small breeds can make the switch at 7 to 9 months; bigger breeds at 12, 13, even 14 months. Err on the side of caution: Better to be on puppy food a little too long than not long enough. After age 1: Most owners feed adult dogs two half-portions a day. How much food should I give my puppy . Thereâs a saying in canine feeding: Watch the dog, not the dish. Body condition, not the amount eaten or left in the bowl, should determine portion sizes.