Ecology Review

Front

What is the Phosphorus cycle?

Back

The Phosphorus cycle is the process by which phosphorus moves through the lithosphere, hydrosphere, and biosphere. It is essential for plant growth and is often found in fertilizers.

Front

What process converts atmospheric nitrogen to a soil form usable by plants?

Back

Nitrogen fixation is the process that converts atmospheric nitrogen (N2) into ammonia (NH3) or related compounds in soil, making it available for plant uptake.

Front

What type of growth occurs with unlimited resources?

Back

Exponential growth occurs when resources are unlimited, allowing a population to grow rapidly without constraints.

Front

What is an ecosystem?

Back

An ecosystem is a community of living organisms interacting with their nonliving environment, including factors like air, water, and soil.

Front

Which organism has the least amount of energy available in an energy pyramid?

Back

The Top Predator has the least amount of energy available in an energy pyramid, as energy decreases at each trophic level.

Front

What is nitrogen fixation?

Back

Nitrogen fixation is the process of converting atmospheric nitrogen into a form that plants can absorb and use, typically ammonia.

Front

What is the difference between logistic and exponential growth?

Back

Logistic growth occurs when resources are limited, leading to a population that grows rapidly at first but then levels off. Exponential growth occurs when resources are unlimited.

Front

What role do producers play in an ecosystem?

Back

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

Front

What is denitrification?

Back

Denitrification is the process by which bacteria convert nitrates in the soil back into nitrogen gas, releasing it into the atmosphere.

Front

What is the significance of the nitrogen cycle?

Back

The nitrogen cycle is crucial for recycling nitrogen in various forms, making it available for living organisms and maintaining ecosystem health.