Question

which animals depend both on plants and animals for the
ir food​

Answer 1

omnivorous animals are those which are dependent on both plants and animals.

Ex-crow,bear etc.,

Answer 2

matter, in some way, in their diet, to get some essential nutrients,

and many strict herbivores, such as cows and deer are well known to very occasionally eat animal carcasses for the same reason.

Many species of birds, e.g. starling, regularly eat invertebrates as well as fruits and seeds.

Bears, pigs, rats, mice, chimpanzees, dogs to name a few mammals, are also naturally omnivores. Keep in mind the pet food you give a cat or dog is highly bulked up with rice, soy, sawdust and other cellulose type plant material, though it’s not part of their natural diet, we have imposed regular vegetarianism on them.