| A | B |
|---|
| nutrition | the process by which organisms take in and utilize food material |
| herbivore | feeding on plants |
| carnivore | an animal that eats flesh |
| membrane | a thin, pliable sheet or layer of animal or vegetable tissue, serving to line an organ, connect parts |
| primary | first or highest in rank or importance |
| omnivore | eating both animal and plant foods |
| hygiene | a condition or practice conducive to the preservation of health, as cleanliness |
| incisors | any of the four anterior teeth in each jaw, used for cutting and gnawing |
| dentine | the hard, calcareous tissue, similar to but denser than bone, that forms the major portion of a tooth |
| permanent | long-lasting or nonfading |
