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12.Ecosystem
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Which of the following is correct sequence in food chain
A
Fallen leaves $→$ bacteria $→$ insect larvae $→$ birds
B
Phytoplankton $→$ zooplankton $→$ fish
C
Grasses $→$ fox $→$ rabbit
D
Grasses $→$ chameleon $→$ insects $→$ birds
(AIPMT-1991)
Solution
(b)Because phytoplankton is eaten by zooplankton which in turn is eaten by fishes.
Standard 12
Biology
Similar Questions
Match the following:
| Trophic levels | Examples |
| $(A)$ First | $(a)$ Mon |
| $(B)$ Second | $(b)$ Wolf |
| $(C)$ Third | $(c)$ Cow |
| $(D)$ Fourth | $(d)$ Phytoplankton |
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