Questions and Answers
Which of these are examples of biotic factors in a desert ecosystem? (Select all that apply)
Which of these are examples of abiotic factors in a desert ecosystem? (Select all that apply)
What is the role of decomposers in ecosystems?
Decomposers break down dead organisms and return organic materials to the ecosystem.
How does energy move through ecosystems?
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How do biotic and abiotic factors differ between a large ecosystem like a South American rain forest and a mini-ecosystem like a bromeliad?
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What makes the ecosystem around Yellowstone National Park's hot springs unique?
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What interactions occur in a garden?
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How do plants change their environment?
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How do the activities of animals affect the environment?
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How does climate affect the biota within an ecosystem?
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What is the role of water in the formation of ecosystems?
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Select a biome in which you would like to live and tell why.
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Study Notes
Desert Ecosystem
- Biotic factors include organisms like cacti, spiders, and snakes.
- Abiotic factors consist of elements such as sunlight, wind, and sand.
Decomposers
- Play a crucial role in breaking down dead organisms.
- Return organic materials back to the ecosystem, which helps cycle matter and energy.
Energy Movement in Ecosystems
- Energy originates from sunlight as radiant energy.
- Organisms convert this radiant energy into chemical energy for life processes.
Ecosystem Comparison
- Large ecosystems like South American rain forests display greater independence among species.
- Mini-ecosystems, such as bromeliads, demonstrate greater dependency on their immediate environment.
Unique Yellowstone Ecosystem
- Hot springs in Yellowstone National Park house self-sustaining mini-ecosystems with unique biota.
Garden Interactions
- Interactions in a garden involve the soil, air, rainwater, and the surrounding community of organisms.
Impact of Plants on Environment
- Plants modify their environment by removing oxygen and releasing carbon dioxide (CO2).
- Insects and birds interact with plants, feeding on them and contributing to the ecosystem dynamics.
Animal Influence on Environment
- Animals consume oxygen produced by plants and in turn, expel carbon dioxide (CO2), affecting air quality and ecosystem health.
Climate and Biota
- The survival of specific biota is heavily influenced by climate conditions, as only certain organisms can thrive in particular climates.
Water's Role in Ecosystems
- Water serves as a vital resource for plants and animals; it is essential for life and ecosystem formation.
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Description
Explore the essential concepts of biotic and abiotic factors in desert ecosystems through flashcards. Learn about the critical role of decomposers in cycling matter and energy. This quiz will help reinforce your understanding of key environmental science principles covered in Chapter 18, Sections 1-4.
