(a) | Earthworm | (i) | Pioneer species |
(b) | Succession | (ii) | Detritivore |
(c) | Ecosystem service | (iii) | Natality |
(d) | Population growth | (iv) | Pollination |
Consider the following statements:
Every step in a food chain is called a trophic level.
Decomposers convert complex organic matter into simple substances that mix with the soil.
In a food chain, energy increases from lower to higher trophic level.
Interlinking of multiple food chains forms a food web.
Which of the above statements are correct?