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.
Puppies are largely carnivores that eat some omnivorous foods. Puppies naturally wean off their mother's milk at around 8-12 weeks of age. Wild dogs feed their young with prey animal carcases.In the wild, when young dogs are old enough (around 7-8 weeks old) they start to eat on their own whilst simultaneously decreasing the amount of milk they suckle from their mother.Puppy feeding guide:1  Talk to your veterinarian for advice.n the wild, when young dogs are old enough (around 7-8 weeks old) they start to eat on their own whilst simultaneously decreasing the amount of milk they suckle from their mother. Puppy feeding guide: 1  Talk to your veterinarian for advice.