| A | B |
|---|
| spontaneous generation | the theory that states that living things can evolve (develop) from nonliving matter |
| abiogenesis | scientific synonym for spontaneous generation |
| biogenesis | theory, accepted by today's scientists, which states that living things can only develop from other living things that are similar in structure |
| abiotic | term to describe inorganic matter that has never been alive |
| biotic | term to describe organic matter that is alive or that came from organisms that were once alive |
| Biogenesis is to living as abiogenesis is to ___. | nonliving |
| All living things begin life as a ___. | single cell |
| In Redi's experiment, what is the independent variable? | the type of covering placed on each jar |
| In Redi's experiment, what is the dependent variable? | the appearance of maggots on the meat in the jars |
| In Redi's experiment, what is the control? | the uncovered (open) jar of meat |
| In Redi's experiment, what are the levels of the independent variable? | solid (airtight) cover, open-weave mesh cover, and no cover (open or uncovered) |
| Redi's classic experiment laid the foundation for the disproval of what theory? | spontaneous generation or abiogenesis |
| Factors, such as the type of container and the type of meat, that Redi kept the same are called ___. | constants |
