Edexcel IGCSE Biology Paper 1BR (4BI1/1BR) – January 2023 Question Paper

1234536783796:8363;4<=>4:=?>6@3:4=256A32?B6A3C?D363>:3D=>E6F?GD674>@=@4:36=>C?D<4:=?>
(!)*+*!,#'-%)!., /0,%#)!.,'
012341678914 02 31678914

Æq¿‰‡ƒ‚ÄÀ†ˆr†p‚¸ƒ„†¿ƒq„‡ƒqp‚ÈɺĂ»Ê˹Á
ǁ°†S{Z74Y HIJKL ·³¹̧ƹ³Å‚·º¼Âƹ³Å
LKMKLKNOK
³‡ p‡ ´µ
¶ƒ„²‚·³¹̧
P


ºr†ƒr†‚»¼‡¯op†‚½¾q¿ÀÁ‚·º¼Â
ýÃÄŲ¹³Å
®‡¯‚°¯‰„‚q±†²
!"#$!%&'
0u\7u3Z4Œ47u14

llmmnYx€ywp1p‚1opƒ2\‚q„ur†sY‚o72Y‡t1ˆZ†4‰yZ943uu3v{w1zZ432Z8Y3wwZb1yY2t3^{13Y\{w1Yzb1z4Šw3{{Y‹Z378742Y38191Œ4t|}~Z4~^
cdefghifjkde
lm\U212Y3Š14142q7p89p7114Y32Z2\Y^2 31278914^
llmmU2‘YŠ1’“’4”•3{–1—”˜’7”1•Y™3“Z’2”šY›–2œ’3{”1‘–Yw”—\™1žY”w’4’ZŸŽ^1
lcdm¡k{gZ¢£Šfujuk3{d1Y31wY22‹\u\7u3Z2Y2Y3313{1723Y^
llmm¤¤{{ž11š’38”Z‘3¥4štu”–Y8šy”Z–44”t¦†žyqZ¥Ÿr4’3”{–šY7”w1™Y”‘3w™Z1§”24•Y4a1žaœYW‘{^”Z¥Š2•’”2™”š9›4’\Ÿt1”™3Y”’–œ‘”¨ž’š¥™^
llmm­¤041{‹13\Zt1‹2Z\Y{7Š1474211YYŽŠ131Z44‹2Y\y7‹411ZYy737Zu{u2‹^Ž911y3Z8141‹Z373{Y1314323Z^2YŠ143^
©ª«ji¬
lm



QRSTRSU
VSWSXQ14YZ2[7\3Z2]3^ 
_àbababababababab

,   
 




 !"#

$#




%&
'
$




 
(# 


 
)*+,-*./01,23.*40056-*72*81.*6.-976,846:*-:-8.;<*=1.*15;,2*6.-976,846:*-:-8.;*7-*
>40,8.?*72*81.*8146,/<
* @,A*=1.*?7,36,;*-14B-*-4;.*4C*81.*-8650856.-*72*81.*15;,2*8146,/<
*


D




* * @7A*E1,8*7-*81.*2,;.*4C*81.*-8650856.*>,F.>>.?*DG
H)I
,>J.4>5-
K F6420174>.
L F642015-
M 86,01.,
* * @77A*E1701*4C*81.-.*?.-067F.-*B1,8*1,99.2-*B1.2*,*9.6-42*F6.,81.-*72G
H)I
?7,916,3;*04286,08-*,2?*;4J.-*?4B2B,6?-
K ?7,916,3;*04286,08-*,2?*;4J.-*59B,6?-
L ?7,916,3;*6.>,/.-*,2?*;4J.-*?4B2B,6?-
M ?7,916,3;*6.>,/.-*,2?*;4J.-*59B,6?-



8
0123423563730

,  


 !
"#$%

&'('
&
)%)%

*
)#
%*
+

*,
)#-
1234256/72897/0:;<
./0
=5>/?2@/=3 2A>/?2@/=3
+B&% CD EF
$
# %*)+)* D-DG G
%)
#&% HI HI
  )J+"

)%
*)''#%$
!%
"#$%

&'&
)%)%

*
)#
%*)%
+

*
)#-
:<
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  ))K)#)%


L
)

$(" )
)%'EGM+B&%
%*HM$
# %,*)+)*-
   NO&&
!B
$(" )
)%'
)#)%


L
))*)''#%
'#(+

*
)#-
:P<
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

:Q86/?983RS206=85TUVW/3X0<




0123423567730






 89 

, 








!
"






#




$%&'()*+,-./-0,1%0/2-023,++4/5)6)78
$8$8





)-699:
;

<  


9=
>?@
A 



B 

C


D 

$8





9# 


!
EFG
0



!





HI JIEEEGK
>L@




!
JM





8
0123423564730