Multiple Choice
Which of the following could be both a natural and a human cause of ecological succession?
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48. Ecology
Introduction to Ecology
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In an ecosystem, what is the primary role of decomposers?
A
They break down dead organic matter, returning nutrients to the soil.
B
They consume primary producers for energy.
C
They produce energy through photosynthesis.
D
They compete with herbivores for food resources.
Verified step by step guidance1
Understand the role of decomposers in an ecosystem: Decomposers are organisms that break down dead or decaying organisms, and in doing so, they carry out the natural process of decomposition.
Recognize the importance of nutrient cycling: Decomposers play a crucial role in recycling nutrients back into the ecosystem, making them available for primary producers like plants.
Differentiate decomposers from other organisms: Unlike primary producers, decomposers do not produce energy through photosynthesis. They obtain energy by breaking down organic matter.
Identify the types of organisms that are decomposers: Common decomposers include bacteria, fungi, and certain insects, all of which contribute to the breakdown of organic material.
Clarify the ecological impact: By returning nutrients to the soil, decomposers help maintain the health and sustainability of ecosystems, supporting plant growth and the overall food web.
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