What types of structures allow animals to obtain (ingest) food?

There are varieties of structures to obtain resources or food:

a. Mouthparts that allow an animal to chew, tear and eat food and drink. These includes beaks, teeth, flexible jaws, tongues

b. The structures that allow animals to grab and hold its food are tentacles, pincers, claws and fangs.

c. The structures that allow an animal to consume food found in the water includes filtering structures in sponges, clams and baleen whales used for feeding