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What are species?
Define habitat
What could cause competition?
get 3 to be positive
Define interdependence
How does energy get lost in the food chain? (3)
What is the equation for the percentage efficiency of energy transfer in a food chain?
What is the final energy transfer in a food chain?
Name 2 decomposers, how do they work and why are they important
Explain the 5 stages of the carbon cycle
What are the 5 stages of the nitrogen cycle? (in terms of nitrogen compounds)
How does nitrogen in the air get to the soil and become useable to plants?
How do nitrates get back into the atmosphere?
What are non living indicators of environmental change? (2)
What are living indicators of environmental change?
What do phytoplankton indicate? in terms of living indicators
What do mayflies indicate?
What do lichens indicate?
What are fossils and why are they useful?
Why has evolution come about?
What is a mutation?
What is the theory of evolution?
What is the theory of natural selection?
What is selective breeding?
How is it done And give an example
Explain the melanic moth example of natural selection?
What happens if an organism is isolated
Explain the tree of life
What did Darwin find?
What did Lamarck propose
What does biodiversity mean?
Why do we classify animals and what happens as you go down the classification list?
What do we mean by sustainability?
Why is it important to maintain ecosystems in terms of the otter example?
What is intensive crop production?
And what are issues with this
How could we improve biodiversity on farmland? (2)
How do we improve sustainability of products ? (3)
What is the lifecycle assessment?
Why is biodegradable packaging good? but what is better
