Questions and Answers
What effect would an increase in carbon dioxide in the atmosphere have on global air temperature?
Autotrophs are organisms that rely on other organisms for food.
False
What is a trophic level?
A trophic level is a position in a food chain or ecological pyramid that indicates the feeding relationships and energy flow.
Plants are known as __________ because they produce their own food.
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Match the species with their role in the ecosystem:
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What is the meaning of the term 'biodiversity'?
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Which of the following is a possible use of land after trees in a tropical rainforest are removed?
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The term 'ecosystem' only refers to plants and animals.
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The removal of trees causes an increase in carbon dioxide in the atmosphere because there is less __________.
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Match the following terms with their meanings:
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Study Notes
Key Terms in Ecology
- Community: A group of different species living and interacting in a shared environment.
- Environment: The sum total of all external conditions and influences that affect an organism's life.
- Population: A group of individuals of the same species that inhabit a specific area.
- Ecosystem: A community of living organisms interacting with their physical environment.
Biodiversity
- Biodiversity: The variety of life in a particular habitat or ecosystem, encompassing different species of plants, animals, and microorganisms.
Land Use after Deforestation
- One use for land after deforestation includes agriculture, such as planting crops or raising livestock.
Effects of Tree Removal on Carbon Dioxide
- Less Photosynthesis: Fewer trees mean reduced carbon dioxide absorption and oxygen production.
- Burning Trees: Deforestation often involves burning trees, which releases stored carbon dioxide back into the atmosphere.
Impact of Carbon Dioxide on Global Temperature
- An increase in atmospheric carbon dioxide contributes to rising global air temperature.
Trophic Levels
- Trophic Level: The position an organism occupies in a food web, reflecting its role in the transfer of energy and nutrients.
Ecosystem Roles of Species
- Plants or Autotrophs: Produce food through photosynthesis; example: grasses.
- Animals or Heterotrophs: Consume organic matter for energy; example: rabbits.
- Decomposers: Break down dead organic matter; example: fungi.
- Prey: Organisms that are eaten by predators; example: small fish.
- Predator: Organisms that hunt and consume other animals; example: foxes.
Food Chain Construction
- A food chain could include:
- Algae → Daphnia → Hydra → Dragonfly Nymph
Biomass
- Biomass: The total mass of living matter in a given area.
- Comparison of Biomass: Daphnia typically has less biomass compared to algae due to its smaller size and higher metabolic rate.
Sources of Carbon and Climate Change
- Sources of Carbon: Fossil fuels, deforestation, and industrial processes.
- Contribution to Temperature Increase: Carbon emissions enhance the greenhouse effect, trapping heat in the atmosphere and raising Earth's temperature.
Photosynthesis and Respiration Equations
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Photosynthesis:
- Carbon dioxide + Water + Light energy → Glucose + Oxygen
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Respiration:
- Glucose + Oxygen → Carbon dioxide + Water + Energy
Importance of Wetland Conservation
- Wetlands serve critical roles such as water filtration, flood control, and providing habitat for diverse species, making their conservation vital for ecological health.
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Description
This quiz focuses on the key terms related to ecology, including community, environment, population, and ecosystem. Answer the questions to demonstrate your understanding of these fundamental concepts in biology. Perfect for students looking to deepen their knowledge in ecological studies.
