Page 149 - The Microworld Miracle
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if it knew the harmful effects of too much ultraviolet light, and us-
es chemical methods to do this. Looked at from all these aspects,
this common life the details of which we have been looking at is the
best and most advanced symbiosis in the world. Coral can survive
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at a maximum temperature of 29 C. When the water reaches 34 C,
coral casts off the algae on its surface. This reaction is the first step
in the death of the coral. If the temperature rise persists for four
weeks, it becomes impossible for the coral polyps to find the algae
necessary for them to survive. 77
Sponges and foreign algae later settle in the emptied-out coral
skeleton. But the algae leaving the coral with which they shared a
common life also take with them the coral's beautiful colors, so that
HARUN YAHYA
(ADNAN OKTAR)
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