MCQ
The second trophic level in a lake is-
- APhytoplankton.
- BZooplankton.
- CBenthos.
- DFishes.
Explanation:
Zooplankton are primary consumers in aquatic food chains that feed upon phytoplankton.
Therefore, they are present at the second trophic level in a lake.
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Reason : Mimicry is a method to acquire body colour blending with the surroundings.
| Column $- I$ | Column $- II$ |
| $(a)$ Typhoid | $(i)$ Wuchereria |
| $(b)$ Pneumonia | $(ii)$ Plasmodium |
| $(c)$ Filariasis | $(iii)$ Salmonella |
| $(d)$ Malaria | $(iv)$ Haemophilus |
$(a)\quad(b)\quad(c)\quad(d)$