Biogeochemical Cycles and Ecological Succession

Front

What is a biogeochemical cycle?

Back

A biogeochemical cycle is a natural process that recycles nutrients in various chemical forms from the environment to organisms and then back to the environment.

Front

What are the main components of the water cycle?

Back

The main components of the water cycle include evaporation, condensation, precipitation, infiltration, and transpiration.

Front

Define transpiration.

Back

Transpiration is the process by which water vapor is released from plant leaves into the atmosphere.

Front

What is the carbon cycle?

Back

The carbon cycle is the series of processes by which carbon compounds are interconverted in the environment, including photosynthesis, respiration, and decomposition.

Front

What role do decomposers play in biogeochemical cycles?

Back

Decomposers break down dead organic matter, returning nutrients to the soil and making them available for plants.

Front

What is a limiting nutrient?

Back

A limiting nutrient is a nutrient that is scarce or cycles slowly, restricting the growth of organisms in an ecosystem.

Front

Explain the nitrogen cycle.

Back

The nitrogen cycle is the process by which nitrogen is converted between its various chemical forms, including fixation, nitrification, denitrification, and ammonification.

Front

What is the significance of the phosphorus cycle?

Back

The phosphorus cycle is important for the growth of plants and animals, as phosphorus is a key component of DNA, RNA, and ATP.

Front

How does burning fossil fuels affect the carbon cycle?

Back

Burning fossil fuels releases carbon dioxide into the atmosphere, increasing greenhouse gas concentrations and contributing to climate change.

Front

What is the role of nitrogen-fixing bacteria?

Back

Nitrogen-fixing bacteria convert atmospheric nitrogen into ammonia, making it available for plants to use.