| A | B |
|---|
| energy | capacity of matter to perform work |
| succession | sequences of events |
| environment | external factors influencing life |
| vegetation | plants in general |
| trophic level | a stage in the food chain |
| dehydration | compound losing water |
| respiration | breathing in and out |
| nutrient | substance that provides nourishment |
| homeostasis | state of equilibrium or balance |
| tolerance | survival of extreme conditions |
| colonization | to establish plants or animals |
| ozone | gaseous form of oxygen with 3 atoms |
| marine | relating to the sea |
| aquatic | connected with water |
| plankton | mass of tiny floating organisms |
| estuary | where fresh and salt water mix |
| alga | aquatic photosynthetic organism |
| salinity | containing salt |
| marsh | low-lying waterlogged land |
