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Biology · 2007 · May · Paper 2 · SL · TZ1 · Question paper

BiologyQuestion paper2007SLMay

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This question paper is listed under Biology in the 2007 examination archive. Its catalogue level is SL. The catalogue session is May. The information below helps you identify the document before opening the complete PDF. Subject, year and session labels come from the archive catalogue; the original cover remains the reference if a label differs. A file is not automatically suitable for your current syllabus simply because its subject name matches.

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2207-6011 9 pages M07/4/BIOLO/SP2/ENG/TZ1/XX Monday 14 May 2007 (afternoon) biology standard level Pa P er 2  IB DIPLOMA PROGRAMME PROGRAMME DU DIPLÔME DU BI PROGRAMA DEL DIPLOMA DEL BI INSTRUCTIONS TO CANDIDATES • Write your session number in the boxes above. • Do not open this examination paper until instructed to do so. • Section A: answer all of Section A in the spaces provided. • Section B: answer one question from Section B. Write your answers on answer sheets. Write your session number on each answer sheet, and attach them to this examination paper and your cover sheet using the tag provided. • At the end of the examination, indicate the numbers of the questions answered in the candidate box on your cover sheet and indicate the number of sheets used in the appropriate box on your cover sheet. 1 hour 15 minutes [Personal identifier removed] [Personal identifier removed] © IBO 2007 0109 2207-6011 – 2 – M07/4/BIOLO/SP2/ENG/TZ1/XX seCtion a Answer all the questions in the spaces provided. 1. A population of bighorn sheep ( Ovis canadensis) on Ram Mountain in Alberta, Canada, has been monitored since the 1970s. Hunters can buy a licence to shoot male bighorn sheep on the mountain. The large horns of this species are very attractive to hunters, who display them as hunting trophies. Most horn growth takes place between the second and the fourth year of life in male bighorn sheep. They use their horns for fighting other males during the breeding season to try to defend groups of females and then mate with them. Younger males below the age of 6 are rarely able to compete with older males and so have fewer offspring. The graph below shows the size of the bighorn sheep population on Ram Mountain. Population size 160 120 80 40 0 1970 1975 1980 1985 1990 1995 2000 2005 Year [Source: Coltman et al., (2003), Nature, 426, page 655–658] (a) Outline the trends in the population of bighorn sheep on Ram Mountain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
File information
Subject
Biology
Document type
Question paper
Year
2007
Session
May
Level
SL
Paper
2
Examination zone
TZ1
Language
Not labelled in the archive
File size
398 KB
Pages
9
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