List of top Questions asked in OJEE- 2026

Jasmine allows 4% discount on the marked price of her goods and still earns a profit of 20%. What is the cost price of a shirt if its marked price is 850?

Which gas has higher solubility in blood?

The 'lub' sound of the heart is produced due to:

The T-wave of an ECG indicates:

During ventricular systole, which valves are open?

The stroke volume of a normal human heart is approximately:

The volume of air remaining in lungs after a forceful expiration is called:

In emphysema, there is:

Carbon dioxide is transported in blood mainly as:

The condition of reduced oxygen supply to tissues is called:

Which interaction leads to evolution of mimicry?

Gause's Competitive Exclusion Principle states that:

Brood parasitism is shown by:

Detritus food chain starts with:

Which of the following represents a correct food chain?

Which ecological pyramid can be inverted in aquatic ecosystems due to high turnover rate?

Standing crop refers to:

Pyramid of energy is always:

In a stable ecosystem, the relationship between Gross Primary Productivity (GPP) and community respiration (R) is:

Which process contributes MOST to nutrient recycling in ecosystem?