Coral Reef and Ecosystems 0.0 / 5 ? OtherWildlife EcologyUniversityNone Created by: Maria5Created on: 05-05-19 23:00 Hard stony corals belong to the order Scleractinia 1 of 24 What type of reef clings to land in areas of clear water and low rainfall? Fringing reef 2 of 24 What type of reef is separated from the land? Barrier reef 3 of 24 What type of reef is a ring shaped island surrounding a lagoon? Atolls 4 of 24 What is the correct formation of coral reefs? Volcano -> fringing reef -> barrier reef -> atoll 5 of 24 Corals need warm water of temperatures between 18-40 degrees 6 of 24 Coral reefs remove --- kg of CO2 a year? 700 billion 7 of 24 Reefs protect what percentage of the coast from erosion? 20% 8 of 24 What are nematocysts? Stinging cells 9 of 24 The mouth in hard corals leads to the gastrovascular cavity 10 of 24 What is coenosarc? horizontal tissue on the outer skeleton connecting polyps 11 of 24 How are polyps linked? Through the epidermal layer 12 of 24 Skeletons are composed of what? Calcium carbonate 13 of 24 What are zooxanthellae? symbiotic algae 14 of 24 Are reef building corals slow or fast growing? Slow 15 of 24 Do non reef building corals live in warm or cold waters? Cold 16 of 24 Non reef building corals can live in total darkness? True 17 of 24 Where do non-reef building corals get energy from? Plankton and suspended particles 18 of 24 Do non-reef building corals have slower or faster growth rates than reef building corals? Slower 19 of 24 Spawning millions of gametes into water for external fertilisation is the action of.... broadcasters 20 of 24 Eggs remain in gastrovascular cavities, fertilised by motile sperm is the action of.... brooders 21 of 24 What is the trigger of mass spawning all 22 of 24 Are coral polyps carnivorous? Yes 23 of 24 What is the correct sequence of coral larvae? Settles on suitable substratum -> metamorphoses into polyp -> divides - budding -> clonal colony 24 of 24
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