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Bio 230 Final exam 2025 Questions and Answers How do energy and matter flow through ecosystems differently? ....ANSWER☑️☑️...-Energy flows one-way, from sun → producers → consumers → lost as heat. Matter cycles through ecosystems, like water, carbon, nitrogen cycles. Explanation: Matter is recycled, but energy is not—it dissipates as heat. How do plants influence the water cycle? - ....ANSWER☑️☑️...-Through transpiration, releasing water vapor from leaves. Their roots increase infiltration and reduce runoff. Explanation: Plants connect the soil to the atmosphere and regulate water movement. What is the difference between a carbon sink and a carbon source? ....ANSWER☑️☑️...-Sink: Absorbs more carbon than it releases e.g., forests, oceans, soils, wetlands Source: Releases more carbon than it absorbs e.g., fossil fuels, deforestation, wildfires, agriculture What roles do oceans, forests, wetlands, rocks, and fossil fuels play in the carbon cycle? - ....ANSWER☑️☑️...-Oceans: Absorb CO₂ and store carbon in deep waters FOR STUDY PURPOSES ONLY ©️ 2025 ALL RIGHTS RESERVED 1