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marine biology test
2-5-15 test
Question | Answer |
---|---|
Why can't corals grow in all tropic areas? | cold water |
What is the function of encrusting coralline algae? | They grow over and around reefs covering them in a protective lair. Protects the reef from the crashing waves |
Know the different reproduction process, asexual and sexual | It can be the traditional way with males and females or one can have both eggs and sperm |
Know the direction corals develop (branching, boulder, foliacious) | branching - up; boulder - sideways; foliacious - horizontally and vertically |
What is the function of mucus for a coral polyp? | it moves food particles towards a coral's mouth opening and moving trapped sediments off a coral's body |
Know which region with fringing reefs are the most seaward and where most of the coral goes | reef flat - closet to the shore; reef crest - most things live here such as coral; reef slope - downward into the deep water (most seaward) |
How are spur and groove formations formed? | By strong wave actions |
What is most likely to form around an extinct volcano? | an atoll |
Which side of an atoll receives the most wind and wave action? | windward side |
Why is a coral reed self-sustaining? | It efficiently recycles its nutrients and produces its own fixed nitrogen |
What are two major primary producers in a coral environment? | zooanthelae and seaweed |
Why don't coral reefs get overgrown from seaweed? | Because the herbivore fish has to overeat to keep itself alive |
Name one way a coral can attack a neighboring coral to obtain space? | take over its sunlight |
How does mutualism allow a lot of different coral species to live in an area together | Makes coral reef more efficient habitat because it provides living spaces EX: clownfish and sea anemone |