QCM.##
#
Partie#I.#Mobilisation#des#connaissances.#Génétique#et#évolution.#10#points.# # ############
#
1.#La#bipédie#chez#l’Homme#est#associée#à#la#:!
R0&,#+.=282.)0-4089.40.''2+28&(0=490(50'd8M0-40'9e)50
R0%,0+.=282.)0-4089.40.''2+28&(0'5)89M50P0(&0%&=50-40'9e)50
R0',0+.=282.)0-4089.40.''2+28&(0P0(f&992Q950<95'4(M5>0-50(&0%&=50-40'9e)50
R0-,0+.=282.)0-4089.40.''2+28&(0P0(f&7&)80-40'9e)50
0
2.0L'homme#se#distingue#du#chimpanzé#par#:!
R0&,0-5=0X&:%5=0+(4=0(.)B45=03450(5=0%9&=0
R0%,04)50=54(50'.49%4950-50(&0'.(.))507598M%9&(50
R0',0(50+.4'50-50(&0:&2)0.++.=&%(50&4/0&4895=0-.2B8=0
R0-,0-5=0X&:%5=0+(4=0'.4985=03450(5=0%9&=0
0
3.!Le#dernier#ancêtre#commun#de#l'homme#et#du#chimpanzé#devait#:!
R0&,0+.==M-590+(4=0-50'&9&'8Q95=0-M927M=0<2)).7&82.)=>05)0'.::4)0&75'0(50'F2:+&)6M034f&75'0(fF.::500
R0%,0+.==M-590+(4=0-50'&9&'8Q95=0-M927M=0<2)).7&82.)=>05)0'.::4)0&75'0(fF.::5034f&75'0(50'F2:+&)6M0
R0',0+.==M-590-5=0'&9&'8Q95=0-M927M=0<2)).7&82.)=>0'.::4)=0P0(fF.::50580&40'F2:+&)6M00
R0-,0)50+.==M-590&4'4)0'&9&'8Q950-M927M0<2)).7&82.)>05)0'.::4)0&75'0(fF.::50580(50'F2:+&)6M0#
#
4.#Les#caryotypes#de#l'Homme#et#du#Chimpanzé#:!
R0&,0=.)802-5)82345=00
R0%,0=.)8085(=03450'5(420-40'F2:+&)6M0+.==Q-50).8&::5)804)50+&2950-50'F9.:.=.:5=05)0+(4=0
R0',0=.)8085(=03450'5(420-40'F2:+&)6M0+.==Q-50).8&::5)804)50+&2950-50'F9.:.=.:5=05)0:.2)=#
R0-,#-2VVQ95)804)2345:5)80+&90(&0+&2950-50'F9.:.=.:5=0=5/45(=00#
#
2ème#PARTIE#–#Exercice#1.#Le#domaine#continental#et#sa#dynamique.#4#points.0
0
1.#L’épaisseur#de#la#croûte#au#niveau#de#la#Vanoise#(document#1)#est#due#à#:0
R0&,0(T5:+2(5:5)80-50:&)85&40(28F.=+FM923450
R0%,0(T5:+2(5:5)80-509.'F5=0=M-2:5)8&295=0
R0',0(T5:+2(5:5)80-TM'&2((5=0-50'9.g850'.)82)5)8&(50
R0-,0(T5:+2(5:5)80-TM'&2((5=0-50'9.g850.'M&)23450
0
On!rappelle!que!les!migmatites!sont!des!roches!issues!de!la!fusion!partielle!des!roches!de!la!croûte!
continentale.!
0
2.#Pour#que#des#migmatites#se#forment,#il#faut#que#la#croûte#continentale#:0
R0&,0&8852B)504)50M+&2==54902)VM9254950P0GZ0h:0
R0%,0&8852B)504)50M+&2==5490=4+M9254950P0Gi0h:0
R0',0&8852B)504)50M+&2==5490'.:+92=505)8950GZ0580Gi0h:0
R0-,0&8852B)504)50M+&2==5490-.)80(5=0'.)-282.)=0)50=.)80+&=089.47M5=0=490#59950
0
3.#Au#niveau#des#Alpes,#les#roches#de#la#croûte#peuvent#entrer#en#fusion#en#profondeur#:0
R0&,0=.4=0(50:&==2V0-50(&0K&).2=50
R0%,0=.4=0(50:&==2V0-5=0A.9)5=0
R0',0=.4=0(&0+(&2)50-40Ed0
R0-,0)4((50+&980
0
4.#Le#front#pennique#(FP)#:#
R0&,0)T&VV5'8503450(5=09.'F5=0=M-2:5)8&295=0-50=49V&'50
R0%,0&VV5'850(50=.'(50:&2=0+&=0(5=09.'F5=0=M-2:5)8&295=0-50=49V&'50
R0',05=80=284M0P0(&0(2:28505)8950=.'(50549.+M5)0580=.'(50&V92'&2)0
R0-,0&VV5'850(&0'9.g850-&)=0=.)05)=5:%(50
0
5.#Le#contact#anormal#du#front#pennique#(FP)#s’est#produit#:#
R0&,0&7&)80(50HM).6.Y3450<#5982&295>0
R0%,0&+9Q=0(50HM).6.Y3450<#5982&295>0
R0',0&40'.49=0-40j49&==23450
R0-,0&40'.49=0-40E59:25)0580-40#92&=0
0
6.#La#non-continuité#du#contact#anormal#C2#s’explique#par#:#
R0&,04)50&%=5)'50-50=M-2:5)8&82.)0
R0%,0(50'954=5:5)80-50(&09.4850-40'.(0-40[&(2%2590+&90(Tk.::50
R0',0(T&++&9282.)0+(4=08&9-2750-40=.::580DliD0:0
R0-,0(TM9.=2.)0-5=0=894'8495=0&VV5'8M5=0