Which one of the following is one of the characteristics of a biological community?
1. | Stratification | 2. | Natality |
3. | Mortality | 4. | Sex-ratio |
Match the following and select the correct option:
Column I | Column II | ||
(a) | Earthworm | (i) | Pioneer species |
(b) | Succession | (ii) | Detrivore |
(c) | Ecosystem service | (iii) | Natality |
(d) | Population growth | (iv) | Pollination |
1. A-(i), B-(ii), C-(iii), D-(iv)
2. A-(i), B-(ii), C-(iii), D-(iv)
3. A-(iii), B-(ii), C-(iv), D-(i)
4. A-(ii), B-(i), C-(iv), D-(iii)