Multiple Choice
Which of the following characteristics are shared by both lakes and ponds?
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48. Ecology
Introduction to Ecology
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How can ecosystems benefit from wildfires?
A
Wildfires permanently eliminate all animal species from the affected area.
B
Wildfires decrease soil fertility by removing all organic matter.
C
Wildfires can promote new plant growth by clearing dead material and releasing nutrients into the soil.
D
Wildfires prevent any future plant growth by sterilizing the soil.
Verified step by step guidance1
Understand the role of wildfires in ecosystems: Wildfires are natural events that can have both destructive and beneficial effects on ecosystems. They are not solely harmful; they can contribute to ecological balance.
Clarify the misconception that wildfires permanently eliminate all animal species: While wildfires can displace or harm some animals, many species have adaptations to survive or escape fires, and ecosystems often recover over time.
Explain how wildfires affect soil fertility: Wildfires burn dead plant material and organic matter, releasing nutrients like nitrogen and phosphorus into the soil, which can enhance soil fertility and promote new plant growth.
Discuss the clearing of dead material: Wildfires remove accumulated dead plant material, which can otherwise inhibit sunlight penetration and new plant growth. This clearing creates space for new vegetation to thrive.
Address the misconception about sterilization: While intense fires can temporarily affect soil microorganisms, they do not permanently sterilize the soil. In fact, the nutrient release often supports future plant growth and ecosystem recovery.
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