| A | B |
|---|
| organism | a living thing |
| cell | the basic unit of structure & function in living things |
| unicellular | a type of organism that is made up of a single cell |
| multicellular | a type of organisms that is made up of many cells |
| development | the process of change that occurs during an organism's life to produce a more complex organism |
| growth | process of becoming larger |
| stimulus | a change in an organism's surroundings that causes the organism to react |
| response | an action or change in behavior that occurs as a result of a stimulus |
| reproduce | the production of offspring that are similar to the parents |
| spontaneous generation | the mistaken idea that living things arise from nonliving sources |
| controlled experiment | An experiment in which all of the variables except for one remain |
| manipulated variable | the one factor that a scientist changes to test a hypothesis during an experiment |
| autotroph | an organism that makes its own food |
| heterotroph | an organism that cannot make its own food |
| homeostasis | the process by which an organism's internal environment is kept stable in spite of changes in the external environment |
