Explain how a polar bear is adapted to survive in the Arctic.
From Paper 2, Higher
116 marks
Describe how to use a transect to investigate how the distribution of a plant species changes from a hedge into a field.
From Paper 2, Higher
123 marks
Producers in a food chain contain 2500 kJ of energy per m². Primary consumers contain 225 kJ per m². Calculate the efficiency of transfer and give two reasons why it is not 100%.
From Paper 2, Higher
133 marks
Explain how deforestation increases the concentration of carbon dioxide in the atmosphere.
From Paper 2, Higher
143 marks
Explain how mycoprotein is produced and why it is a sustainable food.
From Paper 2, Higher
213 marks
Explain how predator and prey populations change in cycles.
From Paper 2, Higher
223 marks
Explain why quadrats should be placed randomly.
From Paper 2, Higher
233 marks
Producers in a food chain contain 12000 kJ of energy per m². Primary consumers contain 1440 kJ per m². Calculate the efficiency of transfer and give two reasons why it is not 100%.
From Paper 2, Higher
244 marks
Describe four biological consequences of global warming.
From Paper 2, Higher
253 marks
Explain why factory farming increases the efficiency of food production and one ethical objection.
From Paper 2, Higher
323 marks
Describe how extremophiles are adapted to their environments.
Score 0 / 37 · 0 of 11 marked
This paper is written by Plasmo in the style of the Edexcel GCSE Biology exam. It is not a past paper and is not produced or endorsed by the exam board.
Ecosystems and material cycles Exam Questions: Edexcel GCSE Biology | Plasmo