Ecosystems

What is the primary source of energy for most ecosystems?

Which of the following best describes a producer in an ecosystem?

In an Indian forest ecosystem, which of the following is an example of a decomposer?

Which of the following is NOT a characteristic of a climax community in an ecosystem?

In the context of Indian ecosystems, the Sundarbans mangrove forest is an example of which type of ecosystem?

Which of the following energy transfer efficiencies is closest to the average between trophic levels in most ecosystems?

What term describes the variety of life forms within an ecosystem, including species diversity, genetic diversity, and ecosystem diversity?

Which process in an ecosystem is primarily responsible for returning nitrogen to the soil in a form usable by plants?

In the food chain: Grass → Grasshopper → Frog → Snake → Eagle, which organism is a tertiary consumer?

Which of the following human activities has the greatest negative impact on the Indian Himalayan ecosystem?