AQAGeography Living World Ecosystems and Biomes

What is an ecosystem?

• A community of plants and animals sharing an environment with non-living things.

• The flow of energy between living organisms.

• A global biome such as the tropical rainforest.

• The pathways through which

  nutrients are constantly recycled.

Which of the following statements is true?

• The term biotic relates to all living organisms within an ecosystem such as plants and animals. Abiotic elements are the non-living features such as soil, rocks and the climate.

• The term abiotic relates to all living organisms within an ecosystem such as plants and animals. Biotic elements are the non-living features such as soil, rocks and the climate.

Which of the following is a characteristic of a producer in an ecosystem?

• They are herbivores which means they only eat plants.

• They are carnivores.

• They produce their own food through photosynthesis.

• They break down dead plants and animals

Which of the following is a characteristic of a primary consumer in an ecosystem?

• They are herbivores which means they only eat plants.

• They are carnivores.

• They produce their own food through photosynthesis.

• They break down dead plants and animals

Which of the following is a characteristic of a secondary consumer in an ecosystem?

• They are herbivores which means they only eat plants.

• They are carnivores.

• They produce their own food through photosynthesis.

• They break down dead plants and animals

Which of the following is a characteristic of decomposers in an ecosystem?

• They are herbivores which means they only eat plants.

• They are carnivores.

• They produce their own food through photosynthesis.

• They break down dead plants and animals

What is a food chain?

• A community of plants and animals sharing an environment.

• The transfer of nutrients in an ecosystem.

• A global scale ecosystem. Also known as a biome.

• A series of organisms each dependent on the next as a source of food.

What is the transfer of nutrients through an ecosystem is known as?

• Food chain

• Food web

• The nutrient cycle

• A biome

Which of the following is not an example of a small-scale ecosystem

• A hedgerow

• A pond

• A wood

• An area of tropical rainforest

What is a biome?

• A biome is a very large ecological areas e.g. tropical rainforest.

• A biome is a small-scale ecosystem e.g. pond.

• A biome is a store in the nutrient cycle.