MCQ
$C_{4}$ pathway is advantageous over $C_{3}$ pathway in plants. because it
- ✓Occurs in relatively low $c o_{2}$ concentration
- BUses more amount of water
- COccurs in relatively low $O_{2}$ concentration
- DIs less efficient in energy utilisation
When the weather is hot and arid, the leaves close their stomata to reduce water loss. This closure results in low $CO _{2}$ concentrations and thus, leading to both loss of $RuBP$ and inhibition of Calvin-Benson cycle.
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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 :