Multiple Choice
Which of the following best describes decomposers in an ecosystem?
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48. Ecology
Introduction to Ecology
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What is the most important function of pioneer species in an ecosystem?
A
To prevent the invasion of non-native species
B
To provide immediate food resources for herbivores
C
To establish soil stability and fertility
D
To increase the biodiversity of the ecosystem
Verified step by step guidance1
Understand the role of pioneer species: Pioneer species are the first organisms to colonize a barren or disturbed ecosystem. They play a crucial role in ecological succession, which is the process of ecosystem development over time.
Recognize the characteristics of pioneer species: These species are typically hardy and can survive in harsh conditions. They often have adaptations that allow them to grow quickly and reproduce in environments with limited resources.
Identify the primary function of pioneer species: One of their most important functions is to establish soil stability and fertility. They do this by breaking down rock into soil, adding organic matter through their own decay, and fixing nitrogen, which enriches the soil.
Consider the impact on the ecosystem: By improving soil conditions, pioneer species create a more hospitable environment for other species to colonize, thus facilitating the next stages of ecological succession.
Evaluate the long-term effects: Over time, the presence of pioneer species leads to increased biodiversity as more plant and animal species are able to inhabit the area, contributing to a more complex and stable ecosystem.
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