MCQ
Second most important trophic level in a lake:
- ✓Zooplankton.
- BPhytoplankton
- CBenthos.
- DNeuston.
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Arrange them in correct sequence. (Past to Recent)
$A$. Homo habilis $B$. Homo sapiens
$C$. Homo neanderthalensis $D$. Homo erectus
Choose the correct sequence of human evolution from the options given below:

Statement $I$: Gause's competitive exclusion principle states that two closely related species competing for different resources cannot exist indefinitely.
Statement $II$: According to Gause's principle, during competition, the inferior will be eliminated. This may be true if resources are limiting.
In the light of the above statements, choose the correct answer from the options given below :