Ecosystems UNIT 1 SECTION B 0.0 / 5 ? GeographyEcosystemsGCSEAQA Created by: kaylzberryyyCreated on: 24-10-21 11:43 What are biotic components of an ecosystem? Living factors: fish, plants, etc. 1 of 20 What are abiotic components of an ecosystem? Non-living factors: temperature, light, soil, etc. 2 of 20 Define producers and give an example. Producers convert energy from the environment into sugars. Eg. plants that convert energy by photosynthesis. 3 of 20 Define consumers and give an example. Consumers get energy from the sugars produced by the producers. Eg. a pond snail because it eats plants. 4 of 20 Define decomposers and give an example. Decomposers break down plant and animal material and return the nutrients to the soil. Eg. bacteria and fungi. 5 of 20 What does a food chain show? A food chain shows the links between producers and consumers. 6 of 20 What does a food web show? A food web shows all the connections between producers and consumers in a more complex way. 7 of 20 Explain nutrient cycling. When plants or animals die, the decomposers help to recycle the nutrients, making them available once again for the growth of plants or animals. 8 of 20 What is a natural change that affects ecosystems? Extreme weather such as droughts. 9 of 20 What are 2 human changes that affect ecosystems? Removal of hedges destroy habitats and alter the plant/animal balance. Woods cut down destroys habitats for birds. 10 of 20 What are the weather + temperature characteristics of a tropical rainforest? High temperatures Heavy rainfall 11 of 20 What are the weather + temperature characteristics of a desert? High daytime temperatures Low night time temperatures Low rainfall 12 of 20 What are the temperature characteristics of a polar ecosystem? Low temperatures Dry conditions 13 of 20 What are the weather + temperature characteristics of deciduous and coniferous forests? Brief summer months Better suited to colder climates 14 of 20 What are the temperature characteristics of a temperate grassland ecosystems? Refer to seasons. Warm, dry summers Cold winters 15 of 20 What are the weather + temperature characteristics of mediterranean ecosystems? Refer to seasons. Hot, dry summers Mild winters 16 of 20 What are the weather + temperature characteristics of a tropical grassland ecosystem? Dry season can be hot with wildfires Thunderstorms can occur during wet season 17 of 20 What are the weather + temperature characteristics of a tundra ecosystem? Cold Windy Dry 18 of 20 Why are plants ideal for tropical rainforests? Heavy rainfall is ideal for growth of plants. 19 of 20 How are plants and animals adapted to live in the desert? Animals: thick eyebrows to block sun, wide feet so they don't sink in sand, 20 of 20
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