Human_Biological_Science_Stage_3_Ratified_Marking_key_2013_web_only_version.docx

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HUMAN BIOLOGICAL SCIENCEStage 3WACE Examination 2013Marking KeyMarking keys are an explicit statement about what the examiner expects of candidateswhen they respond to a question. They are essential to fair assessment because theirproper construction underpins reliability and validity.Copyright © School Curriculum and Standards Authority 2013
HUMAN BIOLOGICAL SCIENCE2MARKING KEYSTAGE 3Section One: Multiple-choice30% (30 Marks)QuestionAnswer1b2c3a4d5d6a7c8a9d10c11b12b13c14c15a16a17b18a19c20d21b22c23b24d25b26a27c28b29d30dA= 7B= 8C= 8D= 7
HUMAN BIOLOGICAL SCIENCE3MARKING KEYSTAGE 3Section Two: Short answer50% (100 Marks)Question 31(10 marks)(a)State the name given to the study of rock layers.(1 mark)DescriptionMarksStratigraphy1Total1(b)(i)Which location contains the oldest layer? Justify your answer.(2 marks)DescriptionMarksS1Using the principle of superposition technique1Matching all similar strata together results in S having thedeepest layerTotal2(ii)Some of the fossils found in the rock strata can be seen in more than one locationand help to provide a more precise correlation between the rock strata in differentlocations. State the name given to these types of fossils. (1 mark)DescriptionMarksIndex fossil/ index1Total1(c)(i)Outlinefourunique conditions needed for fossil formation to occur.(4 marks)
HUMAN BIOLOGICAL SCIENCE4MARKING KEYSTAGE 3Specimen needs to be not disturbed by earth movements(e.g. earthquakes/ plate tectonics)Total4(ii)Statetworeasons, apart from a lack of fossil formation, that explain why thereare gaps in the fossil record. (2 marks)

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