Ecology

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What is nitrogen fixation?

Back

The process of converting nitrogen gas from the atmosphere into ammonia or related compounds in soil, primarily by certain bacteria.

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What is an ecosystem?

Back

A community of living organisms interacting with their nonliving environment in a specific area.

Front

What percentage of the atmosphere is made up of nitrogen?

Back

78%.

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What is a food web?

Back

A complex network of feeding relationships among various organisms in an ecosystem.

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What is a carbon sink?

Back

A natural reservoir that stores more carbon than it releases, helping to mitigate climate change.

Front

What role do decomposers play in an ecosystem?

Back

Decomposers break down dead organic matter, returning nutrients to the soil and supporting plant growth.

Front

What is the significance of biodiversity in an ecosystem?

Back

Biodiversity enhances ecosystem resilience, productivity, and stability, allowing it to better withstand environmental changes.

Front

How does energy flow through an ecosystem?

Back

Energy flows from producers to consumers and then to decomposers, typically in a one-way direction.

Front

What is the difference between a food chain and a food web?

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass, while a food web is a complex network of interconnected food chains.

Front

What is the role of producers in an ecosystem?

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Producers, such as plants, convert sunlight into chemical energy through photosynthesis, forming the base of the food chain.