Biology · 2002 · November · Paper 3 · HL · Question paper
BiologyQuestion paper2002HLNovember
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This question paper is listed under Biology in the 2002 examination archive. Its catalogue level is HL. The catalogue session is November. 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 14 November 2002 (morning)
1 hour 15 minutes
N02/410/H(3)
c
IB DIPLOMA PROGRAMME
PROGRAMME DU DIPLÔME DU BI
PROGRAMA DEL DIPLOMA DEL BI
882-136 16 pages
INSTRUCTIONS TO CANDIDATES
! Write your candidate name and number in the boxes above.
! Do not open this examination paper until instructed to do so.
! Answer all of the questions from two of the Options in the spaces provided. You may continue
your answers in a continuation answer booklet, and indicate the number of booklets used in the
box below. Write your name and candidate number on the fr ont cover of the continuation
answer booklets, and attach them to this question paper using the tag provided.
! At the end of the examination, indicate the letters of the Options answered in the boxes below.
Number
Name
TOTAL
/40
TOTAL
/40
TOTAL
/40
NUMBER OF CONTINUATION
BOOKLETS USED .........
/20/20/20
/20/20/20
IBCATEAM LEADEREXAMINEROPTIONS ANSWERED
Option D Evolution
D1. About 2.5 million years ago, falling sea levels resulte d in the joining together of North America
and South America through a narrow land bridge, the isthmus of Panama. This event allowed
two-way traffic of land mammals between the formerly isolated continents. A redistribution of
families and genera (plural form for genus) occurred. The following graphs show the total number
of known native and immigrant familie s and genera in South America over a time span ranging
from 9 million years ago to the present.
South American native families
North American immigrant families
Millions of
years ago
10 20 30 40
South America
Number of familiesNumber of genera
50 100 15020
1
2
3
4
5
6
7
8
9
Present
[Source: Marshall, Science (1982), 215, pages 13511357]
[2]
(a) Compare the changes in the number of South American native families and the number of
North American immigrant families in the 1 million years after the formation of the land bridge.
.........................................................................
.........................................................................
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[1]
(b) Suggest a reason for the decline in the number
File information
Subject
Biology
Document type
Question paper
Year
2002
Session
November
Level
HL
Paper
3
Examination zone
Not labelled in the archive
Language
Not labelled in the archive
File size
343 KB
Pages
16
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