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Number (fractions): Helping Hawks

3 - Further Challenges

Inspired by Nature Worksheet

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Further Challenges

  • Thomas Hayes and his fellow conservationists found that by spraying the nests to kill the botfly infestation they improved chick survival with 20% of nestlings surviving to adulthood.

How many years will it now take for the population to exceed 700?

  • How could you show this information on a graph so that you can compare population growth without and then with the spray?

https://www.bbc.co.uk/programmes/p0gqbv62/player

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