Biology · 2003 · May · Paper 3 · HL · Question paper
BiologyQuestion paper2003HLMay
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This question paper is listed under Biology in the 2003 examination archive. Its catalogue level is HL. 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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BIOLOGY
HIGHER LEVEL
PAPER 3
Thursday 8 May 2003 (morning)
1 hour 15 minutes
M03/410/H(3)+
IB DIPLOMA PROGRAMME
PROGRAMME DU DIPLÔME DU BI
PROGRAMA DEL DIPLOMA DEL BI
c
223-136 18 pages
INSTRUCTIONS TO CANDIDATES
y Write your candidate number in the box above.
y Do not open this examination paper until instructed to do so.
y Answer all of the questions from two of the Options in the spaces provided. You may continue
your answers on answer sheets. Write your ca ndidate number on each answer sheet, and attach
them to this examination paper and your cover sheet using the tag provided.
y At the end of the examination, indicate the letters of the Options answered in the candidate box
on your cover sheet and indicate the number of answer sheets used in the appropriate box on
your cover sheet.
[Personal identifier removed]
Option D – Evolution
D1. The discovery of well preserved fossil hominids has been particularly valuable as body size can be
estimated. These new data show that different parts of the hominid body evolved at different times
and at various rates. Eight species of hominid, five of Australopithecus and three of Homo were
analyzed. The table below shows the geological dates and the estimated body and brain sizes of
these species and of three modern African apes.
(Note: Myr = millions of years ago)
505701400Gorilla gorilla
39541490Pan troglodytes
34332380Pan paniscus
Modern African apes
135049580.4 – 0H. sapiens
98055600.5 – 0.3H. erectus (late)
80452581.8 – 1.5H. erectus (early)
59732522.4 – 1.6H. habilis
Homo
50232401.8 – 1.0A. robustus
48834492.1 – 1.3A. boisei
399– –2.7 – 2.3A. aethiopicus
42030413.0 – 2.3A. africanus
38429454.0 – 2.8A. afarensis
Australopithecus
FemaleMale
Brain
volume / cm
3
Body mass / kgDates / MyrSpeciesPrimates
[Source: H McHenry, Proceedings of the National Academy of Science, USA, (1994), 91, pages 6780–6786]
[1](a) (i) Identify, giving a reason, which hominid species is the least related to H. sapiens.
.....................................................................
.....................................................................
[1](ii) Suggest one reason why there is no data on body mass for A. aethiopicus.
File information
Subject
Biology
Document type
Question paper
Year
2003
Session
May
Level
HL
Paper
3
Examination zone
Not labelled in the archive
Language
Not labelled in the archive
File size
226 KB
Pages
18
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