B3 - Life on Earth

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W R X E H O N J C K Q S Q U Y D L E K Q C
S T R E A M L I N E D Y J C E N H H T Y K
R D F A D D T G X N U U D A I Y D D T T X
S U R V I V A L O F T H E F I T T E S T L
Y P W P D I V O N K G O Y D B J Q U Y V G
B I D L A H D P I C K V U O O F U U Q Q T
V T A A B H J E D M U T A T I O N S E F A
X M P D O N O T H E L P S U R V I V A L K
F B T I S C T R T N D J K D Q O R Y N W A
L B H Y Y D Y C B O L E A M Q D X B O M P
C L E S W W W C L V U E X D U R D K I S S
P P A S S E D O N U P A M G F K B C T M L
F N A T U R A L S E L E C T I O N A A J W
K X I F Q W T A I L F I N S T N M M I N U
W S E L E C T I V E B R E E D I N G R G Q
M A F R E D U C E W A T E R L O S S A L M
U I U V B Y O L F L Q O E H L I Y D V M U
F X D D L L A N L J D N S U V B R I C D N
P K F C D D D X G M I O R S N I C O O A W
C L T S K T O S I N Q E A E L P I O Y T S
X L B M L R C F T W L N C J Q G U D V P O

Clues

  • A cactus has a small surface-area to volume ratio in order to.. (6, 5, 4)
  • If mutations occur during the formation of sex cells, the mutation is ............... to offspring. (6, 2)
  • Natural selection means........ (8, 2, 3, 7)
  • Selective breeding can be dangerous as it promotes development of features that......... (2, 3, 4, 8)
  • The bodies of fish are ........... . This helps them to move through water with as little resistance as possible. (11)
  • The process of less adapted species dying off is called ...... (7, 9)
  • These features of a fish's anatomy propel them through water. (4, 4)
  • When a human chooses what gets selected it is called.......... (9, 8)
  • When genes change, it is called.... (9)
  • When individuals of the same species have differences it is called ......... (9)

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