Anatomy and Physiology

2. organic molecules required in diet in small amounts, 13 different ones
3. the removal of indigestible waste from the body; the fourth stage of food processing
4. the process of taking nutrients into the blood; the third stage of food processing
5. must be attained preassembled from food, such as lysine
9. are required by cells and must be obtained from dietary sources
10. not enough chemical energy
11. the solute concentration of a substance
12. regulates solute concentrations and balances the gain and loss of water
16. constructed from organic carbon and organic nitrogen
17. a group of organisms that eat relatively large pieces of food, like snakes

1. a group of organisms with the common ability to separate food particles from suspension for nutrition, which includes organisms ranging from sponges to birds
6. not enough of a specific kind of essential nutrient
7. the process of breaking down food; second stage of food processing
8. a group of organisms that live on or inside their food source and feeds through the soft tissues, such as leaf miner caterpillars and maggots
13. the act of eating; the first stage of food processing
14. a group of organisms that feed on the fluid of other organisms, such as mosquitos
15. simple inorganic nutrients