GCSE Biology June 2008 Evolution & Environment Answer Key

Version 1:1: 30/07/08 abc GCSE Science A (4461) Specification A BLY1BP, BL1BSF & BL1BSH Mark Scheme 2008 Examination – June Series This component is an objective test for which the following list indicates the correct answers used in marking the candidates’ responses. Further copies of this Mark Scheme are available to download from the AQA Website: www.aqa.org.uk Copyright © 2008 AQA and its licensors. All rights reserved. COPYRIGHT AQA retains the copyright on all its publications. However, registered centres for AQA are permitted to copy material from this booklet for their own internal use, with the following important exception: AQA cannot give permission to centres to photocopy any material that is acknowledged to a third party even for internal use within the centre. Set and published by the Assessment and Qualifications Alliance. The Assessment and Qualifications Alliance (AQA) is a company limited by guarantee registered in England and Wales (company number 3644723) and a registered charity (registered charity number 1073334). Registered address: AQA, Devas Street, Manchester M15 6EX Dr Michael Cresswell Director GeneralGCSE SCIENCE A (4461)/BIOLOGY (4411) Objective Test Answer Key BLY1BP (Evolution and Environment) Foundation Tier Question Key One A long eyelashes and eyebrows 4 B thick shaggy fur 3 C wide feet 1 D fat-filled hump 2 Two A acid rain 3 B pesticide 4 C methane 1 D sulfur dioxide 2 Three A sexual reproduction 1 B taking cuttings 2 C tissue culture 4 D transplanting embryos 3 Four A Homo sapiens 3 B Australopithecus robustus 4 C Australopithecus afarensis 1 D Homo habilis 2 Five A extinction 4 B natural selection 1 C mutation 3 D variation 2 Six A nucleus transferred from skin cell of Dog Y 2 B electric shock applied 3 C ball of cells inserted into womb of female 4 D nucleus removed from egg cell 1 A B C D Seven 3 3 1 4 Eight 4 2 2 1 Nine 1 2 2 3 GCSE SCIENCE A (4461)/BIOLOGY (4411) Objective Test Answer Key BLY1BP (Evolution and Environment) Higher Tier Question Key One A nucleus transferred from skin cell of Dog Y 2 B electric shock applied 3 C ball of cells inserted into womb of female 4 D nucleus removed 1 Two A mutation 3 B natural selection 1 C extinction 4 D variation 2 A B C D Three 4 2 2 1 Four 1 2 2 3 Five 1 3 2 1 Six 2 1 4 4 Seven 1 3 3 2 Eight 2 2 3 3 Nine 3 2 2 1