Which of the following is the primary source of energy for all ecosystems?
Q.382Easy
What is the approximate percentage of solar energy fixed by plants during photosynthesis?
Q.383Medium
The 10% law of energy transfer in an ecosystem states that only 10% of energy is transferred to the next trophic level. What happens to the remaining 90%?
Q.384Easy
Which type of succession occurs on bare rock or newly formed volcanic islands?
Q.385Easy
Which organism is considered a pioneer species in primary succession?
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Q.386Medium
The concept of 'ecological niche' refers to:
Q.387Easy
Which of the following biomes receives the least amount of rainfall annually?
Q.388Medium
Which of the following is a characteristic of r-selected species?
Q.389Medium
The carrying capacity of an environment is best defined as:
Q.390Medium
In India's biodiversity hotspots, which region is NOT included in the recognized biodiversity hotspots?
Q.391Medium
The concept of 'biomagnification' refers to:
Q.392Easy
Which of the following is an example of a renewable resource?
Q.393Medium
The process by which nitrogen is converted from atmospheric N₂ to usable forms by microorganisms is called:
Q.394Medium
Which of the following best describes 'eutrophication'?
Q.395Easy
Which gas is primarily responsible for the greenhouse effect and climate change?
Q.396Easy
A predator-prey relationship demonstrates which type of ecological interaction?
Q.397Medium
Which of the following is a density-independent factor affecting population dynamics?
Q.398Hard
The biodiversity of India is attributed primarily to:
Q.399Hard
Which of the following phenomena is an example of positive feedback in an ecosystem?
Q.400Medium
A forest ecosystem in the Western Ghats shows a decline in apex predator population, leading to an increase in herbivore numbers and subsequent overgrazing. Which ecological principle is being violated in this scenario?
