B3 - Life on Earth

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

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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