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Pearson Edexcel International GCSE In Biology (4BI1) Paper 2BR Mark Scheme JUNE 2024

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Question Number Answer Mark 1(a) • drowning / being washed overboard / sinking / storms / (bad) weather / attacked / killed by sharks by predators / eq (1) 1 Question Number Answer Mark 1(b) An explanation that makes reference to three of the following points: 1. only based on forecasts / model / not happened yet / can’t predict future / 30 years is a long way off / not guaranteed / eq (1) 2. other (scientists) have different view / only an opinion / governmen...

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Pearson Edexcel International GCSE In Biology (4BI1) Paper 2B Mark Scheme JUNE 2024

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Question Number Answer Additional guidance Mark 1(a) The only correct answer is B (1 and 3) A is incorrect as yeast has no nervous system C is incorrect as yeast has no nervous system D is incorrect as yeast has no nervous system 1 Question Number Answer Additional guidance Mark 1(b) An explanation that makes reference to three of the following: • competition (between megalodon and whales) (1) • whales ate more food / eq (1) • wha...

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Pearson Edexcel International GCSE In Biology (4BI1) Paper 1BR Mark Scheme JUNE 2024

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Question Number Answer Mark 1(a)(i) C (absent, present, absent) A is incorrect because red blood cells have cytoplasm B is incorrect because human red blood cells do not have a nucleus D is incorrect because red blood cells do not have a cell wall 1 Question Number Answer Mark 1(a)(ii) D (tissue) A is incorrect because organs have more than one cell type B is incorrect because organisms have more than one cell type C is incorrect systems have more than ...

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Pearson Edexcel International GCSE In Biology (4BI1) Paper 1B Mark Scheme JUNE 2024

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Question Number Answer Mark 1(a)(i) C (oak tree) A is not the answer as beetle is not the producer B is not the answer as deer is not the producer D is not the answer as tick is not the producer 1 Question Number Answer Additional guidance Mark 1(a)(ii) oak / tree caterpillar mouse tick (2) Allow 1 for correct order. No credit for pyramids 2 Question Number Answer ...

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Pearson Edexcel International GCSE In Chemistry (4CH1) Paper 2CR Mark Scheme Summer 2024

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Question number Answer Notes Marks 1 (a) (i) B (3) A is not the correct answer because sulfur is not in period 2 C is not the correct answer because sulfur is not in period 4 D is not the correct answer because sulfur is not in period 6 1 (ii) D (2−) A is not the correct answer because the charge on a sulfide ion is not 1+ B is not the correct answer because the charge on a sulfide ion is not 2+ C is not the correct answer because the charge on a sulfide ion...

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Pearson Edexcel International GCSE In Chemistry (4CH1) Paper 1CR Mark Scheme Summer 2024

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Question number Answer Notes Marks 1 (a) (i) W 1 (ii) V 1 (iii) Z 1 (b) (i) the number of protons (in the nucleus) IGNORE reference to electrons ALLOW amount of protons 1 (ii) (the sum of) the number of protons and neutrons (in the nucleus) ALLOW amount of protons and neutrons 1 total for question = 5 Question number Answer Notes Marks 2 (a) oxygen ALLOW O2 1 (b) M1 carbon dioxide / C...

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