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12.Ecosystem
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The order of organism in an aquatic food chain is
A
Bacteria $→$ Seal $→$ Diatom $ →$ Fish $→$ Crustacea
B
Crustacea $→$ Seal $→$ Fish $→$ Polar Bear $→$ Diatom
C
Polar Bear $→$ Diatom $ →$ Seal $→$ Crustacea
D
Diatom $→$ Crustacea $→$ Fish $→$ Seal $→$ Bacteria
Solution
(d)Diatoms are producer, crustacea is primary consumer, fish is secondary consumer, seal is top consumer and bacteria are decomposers.
Standard 12
Biology
Similar Questions
Match the following columns.
| Column $- I$ | Column $- II$ |
| $(a)$ Phytoplankton, grass | $(p)$ First trophic level |
| $(b)$ Man, Lion | $(q)$ Herbivore |
| $(c)$ Zooplankton, Cow, Grasshopper | $(r)$ Third trophic level |
| $(d)$ Birds, Wolf | $(s)$ Top carnivore |
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