Corals

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

Clues

  • Axial rod which supports the septa, running up the centre of some corals? (9)
  • Class of Corals (8)
  • Curved plates connected to septa and tabulae (12)
  • Phylum of Corals (8)
  • The outermost layer of a corals skeleton (often wrinkled in solitary corals) (8)
  • The skeleton produced by one polyp (9)
  • When a small increase in temperature or pollution causes the polyps to die, killing the reef, this is called? (5, 9)
  • Which coral lived between Cambrian to Permian (8)
  • Which type of coral is extant? (13)
  • Wrinkles produced as the polyp grows (6, 5)

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