Coral Reefs Review Ic aqsci

2. describe the rate at which coral grows
4. about 25% of all ____ life requires coral reefs to survive
5. coral reefs are considered the ________ of the sea
6. ocean acidification is when large deposits of carbon have been dropped into the water and have changed the ______ of the water in the coral reef ecosystem
7. the living parts of a the coral reef, like sea cucumbers and perry fish
10. describe the depth needed for coral to form
12. what is the “normal” pH of ocean water?
13. brain coral is an example of ______ coral
17. the ___ predator is the one that is at the top of the food web
18. when one organism benefits, but the other organism is neither helped nor harmed
20. coral ___ is the term for when a coral looses its color due to dropping its symbiotic algae

1. too high of temps can cause coral __________
3. reefs only grow about 1-2 cm a _______!
4. when both organisms benefit from the relationship
6. Zooxanthellae is the _______ algae that lives on the coral
8. calcium _____ is the hard material that makes up the exoskeleton of coral reefs
9. zooxanthellae provide oxygen, a cleaning service and _____ to the coral
11. polyps are small ___ that make up coral reefs
14. a fringe reef is a type of reef that grows close to the ____
15. when one organism benefits, but one organism is HARMED
16. the non-living parts of the coral reef, like temperature and salt
19. anything LESS than 7 is considered ______ on the pH scale