| A | B |
|---|
| organization | made of cells |
| organization | single-celled or multicelled |
| organization | cells can be differentiated |
| reproduction | must be able to create new offspring |
| reproduction | sexual process or asexual process |
| reproduction | passes genes to next generation |
| uses energy | sunlight is the ultimate source |
| uses energy | autotrophs and heterotrophs |
| uses energy | chemical reactions of metabolism |
| responds to environment | detect changes |
| responds to environment | adjust to changes |
| responds to environment | maintain internal homeostasis |
| growth and development | increase in cell number or size |
| growth and development | changes occuring until adulthood |
| growth and development | pattern controlled by genes and environment |
| adapts over time | species and populations changing |
| adapts over time | occurs over generations |
| adapts over time | speices become better suited to climate |
