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12.Ecosystem
medium
Trophic levels are formed by
A
Organisms linked in food chain
B
Only plants
C
Only animals
D
Only carnivores
Solution
(a)The trophic structure in any ecosystem is a kind of producer consumer arrangement. Here each food level is called trophic level.
Standard 12
Biology
Similar Questions
Match the List$-I$ with List$-II$ :
| List$-I$ | List$-II$ |
| $a$ Carbon dissolved in oceans | $i$ $55$ billion tons |
| $b$ Annual fixation of carbon through photosynthesis | $ii$ $71 \%$ |
| $c$ $PAR$ captured by plants | $iii$ $4 \times 10^3\,kg$ |
| $d$ Productivity of oceans | $iv$ $2$ to $10 \%$ |
