HDHS Trilogy B16 Checkpoint quiz: Organising an ecosystem
Quiz by Alexandra Gill
GCSE (AQA)
Combined Science: Trilogy (ARCHIVED)
English National Curriculum
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10 questions
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- Q1Which process removes carbon dioxide from the atmosphere?combustionphotosynthesisrespirationdecay30s4.7.2.2
- Q2Why is decay an important process in ecosystems?It is needed for animal excretionIt releases mineral ions into the soilIt removes carbon dioxide from the atmosphereIt removes oxygen from the atmosphere30s4.7.2.2
- Q3Which of the following organisms is a producer?grasssharkhorsemouse30s4.7.2.1
- Q4Which type of organisms break down dead animals and plants?decomposerspredatorsconsumersproducers30s4.7.2.1
- Q5What is the correct word equation for photosynthesis?carbon dioxide + glucose → water + oxygencarbon dioxide + water → glucose + oxygenglucose + oxygen → carbon dioxide + waterglucose + water → carbon dioxide + oxygen30s4.4.1.1
- Q6Look at the food chain: grass → grasshopper → frog → snake → hawk Name the secondary consumer in this food chain.froghawkgrasshoppersnake30s4.7.2.1
- Q7The table shows some processes involved in the water cycle. Which row shows the processes which introduce water to the atmosphere?CBDA30s4.7.2.2
- Q8The table shows some processes involved in the water cycle. Which row shows the processes which introduce water to the atmosphere?Less decay in winterLess respiration occurs in the winterLess photosynthesis occurs in the winterMore fossil fuels are burnt in the winter30s4.7.2.2
- Q9The graph shows the changes in populations of wolves and moose over time on an island. Which statement describes what is happening at the point shown by the arrow on the graph?Decreased predation, predator population increasingIncreased predation, predator population increasingIncreased predation, prey population increasingDecreased predation, prey population increasing30s4.7.3.1
- Q10Over the last 200 years, the amount of carbon dioxide in the atmosphere has increased. Why?More photosynthesis, less respirationMore combustion, less photosynthesisMore respiration, less combustionMore decay, less photosynthesis30s4.7.3.5
