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Coral Reefs Crossword Puzzle

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Coral Reefs

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4 Coral reefs are made up of ________ which are tiny organisms that look like rocks
6 Coral reef biomes are naturally colourful because of the ______
7 Coral atolls are made from _________ remains
8 A group of coral is called a ________
10 Coral reefs take a long time to grow. Their growth rate is around _______________ per year
11 Coral reefs are found in shallow water because the algae that live with them need sunlight for _________
12 Fringing reefs can be found along the ___________
14 Nearly ___________ of the world's coral reefs are threatened by human activity
15 Coral reefs are mostly found in ________ areas
16 Although there are many types of animals that live within the coral reef biome, it has much more _________ in its plant life
1 Coral reef plants and animals are important sources of new ___________ being developed to treat cancer, arthritis, human bacterial infections, Alzheimer's disease, heart disease, viruses and other diseases
2 The diversity of the species living within different coral reefs depends on the reef's ________ and the direction of the water
3 Barrier reefs are found near ________ and develop a barrier between the reef and the lagoon
5 Coral reefs exist in __________ water
9 What is the largest coral reef biome in the world?
13 Coral are not ________. They're actually animals and are amazingly enough, relatives of jellyfish and anemones
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