Science Entry Examination Worksheet With Answers - Whitgift School Page 25

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Whitgift School
(iii)
Herring cannot breed until they are four years old.
Fishing for herring was banned in the Norwegian Sea from 1972 to 1976.
Suggest one reason why fishing for herring was banned for this period.
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1 mark
(b)
The diagram below shows a food web in the Norwegian Sea.
not to scale
(i)
How could a decrease in the number of herring cause a decrease in the
number of sand eels?
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1 mark
(ii)
How could a decrease in the number of herring cause an increase in the
number of sand eels?
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1 mark
maximum 5 marks
Whitgift School
| 13+ Science Examination - Sample Paper
25

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