I3 - Activités 1, 2 et 3 - Pavot

Problèmes : Comment trouver et expliquer des liens de parenté entre
diérentes espèces ? Comment appréhender la biodiversité et
comment s'est-elle modiée au cours de l'histoire de la Terre ?
       ! "#$
  %""
 %  
 !
"!#$ &%'
()$)
 %((%
% !&%
!$*%('( $*!
&+ &'(')*!,%
(%%%&+
,*!
-% ./!&*
01
-./"-!&*
0./1)1
2#%%
3!0%)!&*
1./404
'   5  0* 21 %2 
(% !&*
6./#2
78-) !&')*
3 9% : 8 / + " ;
4
5!!
6
,-2(7*8
(*) vertèbres du cou.

<2/+ <%
,42=%8
>%%!:78
%.7
•8  ?( 2 @ @ ! &
02!
•8? 2@@
(!
•7!?% 2
%$!
92
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3% ./!&*
01
-./8"%
0- (!
&*
':(BC3$!
4.0(%D)(!&'(*
➢,E2%DE(%
%!
➢>FD(!
0.>%D2'%
 !''%4 !&*
1./(1
'%!&*
6./'%.:%8
 4)!&')*
/(
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,
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; < 076 / ! 06 =
7!
:.
!
!
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87
>?@$
! G G G
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"D8
,42/'%
7!'%E4@?% !:
(E%H!
: .        ! >              
% !(
!:(E%8!
!1:($144
 %%-$6( !:(
E%!
I9(
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87 :(%E*'
%*!92!:(
E%(!
?  
(  !  :  (  E    %   <   BC  
 !
!$%&%#
%!&@!:(E%
%,,!
,029(
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-A7!&*
=!B
01
-. /N-"%  )
- !&*
4./-40.: '(
$0)!&')*
. 3&C!*
=
'
=%?
:
/?
/
<
,
O
,- 2(
   %            !  :   %  
%(*
 !:E!/
( 2  % $ 
($!/*%(
(%(!('(!&
$(
%! !
Hervé Le Guyader, chercheur en systématique et évolution
,42E

,020
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9=!B
01
-./%"%)
- !&*
4./.:
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 !&*
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