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The Secret Sex Life of Coral

Crafted by Trivia Architect Exit10

Fun Trivia : Quizzes : Cnidarians (Corals, Hydras, Etc.) : The Secret Sex Life of Coral

Introduction:
"Did you know that coral, the beautiful colored rock-like formation to be found on reefs and cays has a reproductive life of its own? Find out more with this quiz."


1. On the Great Barrier Reef just off the coast of Queensland, Australia, there are many different forms and patterns of coral. How many have been identified?
    176
    400
    243
    290


2. The bottom of a reef is a limestone base of dead coral and the colored parts you see are living. Living reef coral is made up of tiny creatures called polyps. What are some of their characteristics?
    all of these
    they are invertebrates
    they have a body similar to a sack that has a hole with stinging tentacles around it
    their size varies from the size of a pinhead to more than a foot


3. Reproduction of coral requires the assistance of zooxanthellae (pronounced zo-zan-thell-y). There is some question over whether they are animals or plants but there is no question that they are essential to the reproductive process. Do they live outside the polyp or inside the polyp?
    Answer: (One word - Inside or Outside)


4. Asexual fragmentation is a reproductive method in coral. When does this occur?
    When a piece of living coral breaks off
    when someone or something touches it
    every 49 weeks
    when there is a change in water temperature of more than 11 degrees Celsius (52 Farenheit)


5. Coral ________ is when the polyp will eject brightly colored, coordinated bundles of eggs and sperm. What is the recognised term for this kind of reproduction?
    spawning
    fertilization
    impregnation
    seeding


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