Ecosystems

• What is the focus of Section B in the study material?

  The Living World
• What are the small scale ecosystem features mentioned?

  Food webs and food chains
• What does the distribution of large scale ecosystems refer to?

  Geographical spread of ecosystems
• Which rainforest is specifically mentioned in the study material?

  Amazon
• What are the characteristics of a rainforest ecosystem?

  Diverse flora and fauna, high rainfall
• What is the nutrient cycle in a rainforest ecosystem?

  Recycling of nutrients through organisms
• How do plants and animals adapt in a rainforest?

  Through specialized traits for survival
• What is the biodiversity and value of the rainforest?

  High biodiversity with ecological importance
• What are the causes of deforestation in the Amazon?

  Logging, agriculture, and urbanization
• What are the impacts of deforestation in the Amazon?

  Loss of biodiversity and climate change
• What is sustainable management of a rainforest?

  Using resources without depleting them
• Which desert is specifically mentioned in the study material?

  Sahara
• What are the characteristics of a hot desert?

  High temperatures, low rainfall
• What is the nutrient cycle in a hot desert?

  Limited recycling due to arid conditions
• How do plants and animals adapt in a hot desert?

  Through water conservation and heat tolerance
• What are the key features of small scale ecosystems?

  • Food webs
  • Food chains
• What are the characteristics of a rainforest ecosystem?

  • High biodiversity
  • High rainfall
  • Complex food webs
• What are the impacts of deforestation in the Amazon rainforest?

  • Loss of biodiversity
  • Climate change
  • Disruption of nutrient cycles
• What are the small scale ecosystem features?

  Components like soil, water, and organisms
• What is the difference between food webs and food chains?

  Food webs show interconnected food chains
• What is a large scale ecosystem distribution?

  Geographical spread of ecosystems globally
• What are the characteristics of a rainforest ecosystem?

  Diverse species, high rainfall, and warm temperatures
• What is the nutrient cycle in a rainforest?

  Recycling of nutrients through organisms and soil
• How do plants and animals adapt in a rainforest?

  Through specialized traits for survival
• Why is biodiversity important in the rainforest?

  It supports ecosystem stability and resilience
• What are the causes and impacts of deforestation in the Amazon?

  Causes include logging and agriculture; impacts include habitat loss
• What is sustainable management of a rainforest?

  Practices that maintain ecosystem health while using resources
• What are the characteristics of a hot desert?

  Low rainfall, extreme temperatures, and sparse vegetation
• What is the nutrient cycle in a hot desert?

  Limited recycling due to low moisture and vegetation
• How do plants and animals adapt in a hot desert?

  Through water conservation and temperature regulation
• What is biodiversity in a hot desert?

  Variety of species adapted to harsh conditions
• What are the opportunities and challenges of the Sahara desert?

  Opportunities include tourism; challenges include water scarcity
• What are the causes of desertification?

  Overgrazing, deforestation, and climate change
• What strategies can reduce the impacts of desertification?

  Reforestation, sustainable agriculture, and water management
• What is the significance of food webs in ecosystems?

  • Illustrate energy flow
  • Show species interdependence
  • Highlight ecosystem complexity
• What are the key characteristics of the Amazon rainforest ecosystem?

  • High biodiversity
  • Warm temperatures
  • Abundant rainfall
  • Complex nutrient cycles
• What are the main causes and impacts of deforestation in the Amazon rainforest?

  Causes:

  • Logging
  • Agriculture expansion
  • Urban development

  
  

  Impacts:

  • Habitat loss
  • Climate change
  • Loss of biodiversity
• What are the main characteristics of the Sahara desert ecosystem?

  • Low rainfall
  • Extreme temperature variations
  • Sparse vegetation
  • Unique adaptations of species
• What are the main features of small scale ecosystems?

  • Soil composition
  • Water availability
  • Types of organisms present
• What are the opportunities and challenges presented by the Sahara desert?

  Opportunities:

  • Tourism
  • Mineral resources

  
  

  Challenges:

  • Water scarcity
  • Harsh living conditions