Ecosystems

What is the primary source of energy for most ecosystems?

Which of the following organisms is a primary consumer in an Indian grassland ecosystem?

In an ecosystem, which of the following is a biotic component?

What term describes the feeding relationship between organisms in an ecosystem?

Which process in the nitrogen cycle is primarily carried out by Rhizobium bacteria in leguminous plants?

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

Energy flow in an ecosystem is:

Which of the following best defines an ecological niche?

In the context of Indian aquatic ecosystems, which factor most significantly affects dissolved oxygen levels?

Which of the following statements about biomagnification is correct?