| A | B |
| science | an organized way of using evidence to learn about the natural world |
| observation | the process of gathering information about events or processes |
| data | the information gathered from observations |
| inference | a logical interpretation based on prior knowledge or experience |
| hypothesis | a proposed scientific explanation for a set of observations |
| spontaneous generation | the idea that life could arise from nonliving matter |
| controlled experiment | an experiment where only one variable is changed at a time |
| manipulated variable | the Independent variable |
| responding variable | the Dependent variable |
| theory | a well-supported hypothesis |
| biology | the study of life |
| cell | smallest functional unit of life |
| homeostasis | internal stability |
| sexual reproduction | cells from 2 different parents unite to form the first cell of a new organism |
| asexual reproduction | a single parent produces offspring that are identical to itself |
| metabolism | the combination of reactions through which an organism breaks down or builds up materials |
| stimulus | a signal to which an organism responds |
| metric system | a system of measurement based on units of 10 |
| microscope | any device that produces a magnified image |
| compound light microscope | allows light to pass through a specimen and uses two lenses to form an image |
| electron microscope | uses beams of electrons to produce an image |
| cell culture | a group of cells grown on a nutrient solution from a single parent cell |
| cell fractionation | a technique that utilizes a blender and centrifuge to separate the different parts of a cell |