The living world assessment

Transcription

1 The living world unit assessment Name: A producer is (1mark) a. An organism that gets energy by eating other organisms. b. An organism that gets energy by breaking down dead material. c. An organism that uses sunlight energy to produce food. 2. Which one of the following is a consumer in the pond ecosystem? (1 mark) a. Midge larva b. Sunlight c. Algae 3. The temperature of the tropical rainforest is between: (1 mark) a b c Which three of these statements correctly describe the aims of ecotourism? (1 mark) a. To protect the natural environment for future generations. b. To benefit local communities. c. Killing animals in a less painful way. 5. Which two of these are accurate descriptions of tropical rainforest soils? (1 mark) a. Most of their nutrients are close to the surface. b. Most tropical rainforest soils are very fertile. c. Many trees have developed deep roots. d. The downward leaching of nutrients due to heavy rainfall produces an infertile soil called latosol Page 1 of 6

2 6. Using Fig. 1, describe the global distribution of tropical rainforests. (2 marks) Fig 1: 7. Describe two ways that plants adapt to conditions in the rainforest: (4 marks) 8. Describe two ways that animals adapt to conditions in the rainforest: (4 marks) 9. Define the terms: (2 marks) a. Biodiversity: Page 2 of 6

3 b. Subsistence farming: 10. Complete the following paragraph: (3 marks) The soil in the rainforest is not very... as heavy rain washes... away. There are nutrients at the surface due to decayed leaf fall, but this layer is very..., as decay is fast in the warm, moist conditions. 11. Explain how the soils and plants in the rainforests are dependent on one another. (2 marks) 12. Describe two threats to the tropical rainforest. (4 marks) Explain how selective logging can help to make the tropical rainforest more sustainable. (4 marks) Total Score: / Page 3 of 6

4 ACT: Achieved, correct and target. Circle the relevant boxes and add at least one of your own Achieved: Correct: Target: Grade boundaries: Good understanding of multiple choice questions. Q13. To link your answer to sustainability. e.g. this is sustainable because. To be clear on the difference between describe and explain (use connectives) = = 8 You know the main characteristics of the rainforest ecosystem. Q7 & 8. To add further description to your points. To spend quality time revising for class assessments = = 6 You know the threats that face the TRF ecosystem. Use geographical terminology within your answers.(e.g. Q6) To use key terms and to learn definitions. (Q9) = = = = = 1 React: Re-write the answer which you feel most needs improving Page 4 of 6

5 Teacher answers: 1. A producer is.. (1mark) c. An organism that uses sunlight energy to produce food. 2. Which one of the following is a consumer in the pond ecosystem? (1 mark) a. Midge larva. 3. The temperature of the tropical rainforest is between: (1 mark) b Which three of these statements correctly describe the aims of ecotourism? (1mark) a. To protect the natural environment for future generations. 5. Which two of these are accurate descriptions of tropical rainforest soils? (1 mark) a. Most of their nutrients are close to the surface. d. The downward leaching of nutrients due to heavy rainfall produces an infertile soil called latosol. 6. Using Fig. 1, describe the global distribution of tropical rainforests. (2 marks) Tropical rainforests are found around the equator (1 mark), in areas such as central America/north and east South America/central Africa/South East Asia. (1mark) 7. Describe two ways that plants adapt to conditions in the rainforest: (4 marks) Tall trees competing for sunlight have big roots called buttress roots to support their trunks and increase the amount of surface area to absorb CO2. (2 marks) Plants have thick, waxy leaves with pointed tips called drip-tips. These channel the water to a point so that it runs off, so the weight of the water does not damage the plant. This means there is no standing water for fungi and bacteria to grow in. (2 marks) Smooth bark, lianas, epiphytes (1 mark only if no description) 8. Describe two ways that animals adapt to conditions in the rainforest: (4 marks) Some animals are camouflaged, e.g. geckos look like leaves so that they can hide from predators. Monkeys live in the canopy so have strong limbs and long tails to climb and leap from tree to tree. Many animals are nocturnal, e.g. sloth. They sleep through the day and feed at night when it is cooler; this helps them to save energy. Other adaptations could include: swim = jaguar, flaps of skin = flying squirrels, sharp sense of smell = anteaters. 9. Define the terms: (2 marks) a. Biodiversity: the variety of organisms (plants and animals) living in a particular area. b. Subsistence farming: farmers grow enough food for themselves and their families Page 5 of 6

6 10. Complete the following paragraph: (3 marks) The soil in the rainforest is not very fertile as heavy rain washes nutrients away. There are nutrients at the surface due to decayed leaf fall, but this layer is very thin, as decay is fast in the warm, moist conditions. 11. Explain how the soils and plants in the rainforests are dependent on one another. (2 marks) The warm and wet climate means that dead plant material is decomposed quickly by fungi and bacteria on the forest floor. This makes the surface soil high in nutrients, meaning plants can grow quickly and easily. 12. Describe two threats to the tropical rainforest. (4 marks) 1. Population pressure (1mark). As the population in an area increases, trees are cleared to make land for new settlements. (1 mark) 2. Mineral Extraction (1 mark). Minerals, e.g. gold and iron ore are mined and sold to make money.( 1 mark) Could also include: energy development/commercial logging/farming/subsistence farming Explain how selective logging can help to make the tropical rainforest more sustainable. (4 marks) It is less damaging to the forest than felling all the trees in an area because only a few trees (older or inferior ones) are taken from each area. If only a few trees are taken the overall forest structure is kept; the canopy is still there and the soil is not left exposed and at risk from erosion. This means the forest will be able to regenerate and be used in the future. hodnettbiomeproject.wikispaces.com, CC BY-SA Page 6 of 6