Ecosystem

What is an ecosystem?

• A region with a recognizable landscape form

• A region with a specific climate

• A community of plants and animals

• A region with a variety of habitats

Which of the following is not a non-living component of an ecosystem?

• Soil

• Water

• Air

• Plants

What is the purpose of the biotic component of an ecosystem?

• To createconditions for living organisms

• To control climatic conditions

• To support a community of plantsand animals

• To form the non living component of the ecosystem

How are ecosystems divided?

• Wetland and coastal

• Terrestrial and aquatic

• Forrest and grassland

• Mountains and plains

What is the definition of an ecosystem?

• The living community of plants and animals

• The non living components of the environment

• The combination of biotic and abiotic components

• There going with specific geographical features

Which of the following ecosystems is highly fragile and easily affected by human activities?

• Forest ecosystem

• Grassland ecosystem

• Island ecosystem

• Agricultural ecosystem

How are nutrients recycled in an ecosystem?

• Through the water cycle

• Through the carbon cycle

• Through the nitrogen cycle

• Through the energy cycle

What happens during photosynthesis?

• Plants take in carbon dioxide and release oxygen

• Plants take in oxygen and release carbon dioxide

• Plants convert energy from sunlight into organic matter

• Plants absorb nutrients from the soil

What is the role of decomposers in an ecosystem?

• To release oxygen into the atmosphere

• To break down dead organic material into simpler substances

• To consume plants and animals

• To convert sunlight into energy

What is ecological succession?

• A process of energy transfer in food chains

• A process through which ecosystems change over time

• A process through which plants convert sunlight into organic matter

• A process of nutrient recycling in the soil