Câu hỏi:

Using your knowledge of external fertilisation, explain why the star coral releases millions of gametes.

Explain means to relate cause and effect; make the relationships between things evident.


Ah, the mysterious love life of the star coral—a tale filled with romance and... billions of gametes. You see, star corals, like many other marine creatures, opt for external fertilization. This means they release their gametes into the open ocean, hoping they'll bump into each other in the vast underwater party. Now, let’s unravel why this calls for such an extravagant spectacle of spawning millions of gametes.

Cause and Effect:

  1. Cause: Vast Ocean Size
    The ocean is huge, and currents are like unpredictable party organizers, scattering gametes far and wide. The more gametes star corals release, the better the chances that some will meet their ideal partners.

  2. Effect: Increased Chances of Fertilization
    By releasing millions of gametes, star corals maximize the probability of successful fertilization. Think of it as buying more lottery tickets to improve your odds, without having to argue with a store clerk.

  3. Cause: Predator Presence
    Many organisms find coral gametes to be a delicious snack. By outnumbering potential predators' appetites with sheer volume, enough gametes can escape the jaws of death long enough to feature in their own romantic subplots.

  4. Effect: Survival of Species
    Mass gamete release helps ensure the survival of the star coral species. The more eggs and sperm put into circulation, the higher the chance some spawn will survive not just past dinner, but long enough to grow into the next generation of scientists and skeptics.

So, thanks to these reasons, star corals lean in on a quantity-over-quality strategy. After all, why not release more bubbles when you're in a cosmic disco with Mother Nature?

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