Question
Match Column-I with Column-II. Select the option with the correct combination.
| Column I | Column II | ||
|---|---|---|---|
| 1 | Standing state | p | Mass of living material at a given time |
| 2 | Pioneer species | q | Amount of nutrients in the soil at a given time. |
| 3 | Detritivores | r | Species that invade a bare area. |
| 4 | Standing crop | s | Breakdown detritus into smaller particles |