1) What does the word ''ecosystem'' mean? 2) Give at least 3 examples of abiotic factors and the definition of 'abiotic factor' 3) What do the arrows in the food chain represent?  4) Pitfall traps were set up and four days later were checked. They were found to be empty. What's the possible source of error here? 5) Describe the difference between interspecific and intraspecific competition 6) Indicator species can provide information about... 7) Describe the sequence of events when fertiliser leaches into a loch 8) State the term which describes using a predator as an alternative to pesticides 9) Put the following in order: secondary consumer, producer, tertiary consumer, primary consumer 10) What causes the energy loss in a food chain? 11) Describe the light reaction of photosynthesis 12) State the limiting factors of photosynthesis 13) Which two products of the light reaction stage is carried over into stage 2? What is the second stage called? 14) How do plants get their nitrogen? 15) Describe the events of speciation 16) What does natural selection mean? 17) Give the definition of mutations and describe the different types

Nat 5 unit 3 zap quiz

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