| A | B |
| Organisms | Living things |
| Life Functions | Processes or activities, common to all living things |
| Nutrition | The life processess in which the organism obtains (gets) and processes food |
| Autotrophs | Organisms that are able to make their own food |
| Heterotrophs | Organisms that feed on ready made organic food |
| Ingestion | The way food is taken into an organism from its environment |
| Digestion | The process that changes food into a form that can be used by the cell |
| Sensitivity | Detecting stimuli and responding to them |
| Assimilation | The process by which raw materials are built up into the structures of the body |
| Genes are made of this | Deoxyribonucleic acid |
| Excretion | The removal of waste materials produced in the cells as a result of life activities |
| Egestion | The process that removes undigested materials from the body |
| Regulation | The life process responsible for the control and coordination of all the various activities of an organism |
| Stimulus | A change in the internal or external environment |
| Synthesis | The process of producing complex substances from simpler substances |
| Growth | An increase in the size and/or number of cells of an organism |
| Locomotion | The process of moving from place to place |
| Receptors | Structures which detect stimuli |
| Chlorophyll | Pigment which absorbs sunlight energy |
| Reproduction | The production (making) of new organisms or cells |
| Metabolism | The sum total of all the life processes taking pace in an organism |
| Homeostasis | The maintenance of a stable internal (inside) environment in spite of changes in the external (outside) environment |
| Parasite | Feed on or inside living organisms |
| Saprotroph | Feed on dead material |