7.2 Write down a description about the type of corrosion that you gave in question 7.1 and give a reason why this corrosion takes place. (2)

Fill in the missing words in this sentence. 5.1 Living things depend on other living things for, , , , and . (5)

  TOTAL: 60

One hypothesis suggests that the Cambrian explosion was caused by the rise of predator-prey relationships. This hypothesis is best supported by an increased incidence of which of the following fossil traces?

2.5 An omnivore is an organism that __________. (1)

Question 7: Answer the questions about corrosion.  Type your answer in the text box provided.

7.5 Identify the type of metal that we would use to build furniture from. (1)

Guard cells

7.3 Name TWO other types of corrosion apart from the answer you gave in question 7.1 (2)

You and Hiccup observe the dragon and notice that it does not seem to be as vicious and deadly, as people claim. Instead, it seems terrified and hurt, due to its tail being injured. Hiccup starts to feel very ashamed of his actions and decides to set it free. Answer these questions to see what happens thereafter.  Click on the button below to open a photo of the Dragon and Hiccup.  This photo will open in a new internet tab. DO NOT close your examination tab. Carefully click between the different tabs to access the different information needed: