Is coral alive?

Have you guys ever heard the word Coral? If not, let us learn it today through this article.


What is coral?

  • Corals are the marine invertebrate animals.
  • They belong to the phylum Cnidaria and class Anthozoa.
  • They are typically formed by the compact colonies of similar animals mostly called as polyps.

Is Coral Alive?

  • Although the external look of coral looks like the non-living thing such as rock.
  • They are found to bee the living thing.
  • Because, coral is made up of compact group formed by the identical living organism called as polyp.
  • The cluster formed by the little invertebrates living organism is said to be alive, irrespective if its outside look of a rock.


  • Corals are the living organism just like us.
  • They grow on the structural support such as rock.
  • Corals are attached to one spot only for their lifetime.
  • A coral group is made up of small organism called as polyps.
  • Polyp are a sac like structured animal with few centimeters height and few millimeters in diameter.
  • Polyps consist of a set of tentacles around the mouth of it.
  • Even though, the coral is set up at a single spot, the tentacles of the polyps can move up to its size and ability.
  • This movement of tentacles helps the coral to get a prey for itself.

Fun Facts:

  1. Most of the coral reefs are not found deep inside the water, reason can be said as they need sunlight for their growth.
  2. Coral reefs are also found to be useful as they clean up the seawater.
  3. Coral reefs are found to be stabilizing the sea bed.

Related Questions:

  1. What is coral reef?
  2. What are the types of coral reef?
  3. Who all are the prey of coral?

True or False:

  1. Corals are the vertebrate animals.
  2. Corals belong to the phylum Chordata.
  3. Corals are said to be as a non-living thing.
  4. Corals can move freely anywhere in the sea.
  5. The tentacles of polyps can move under its ability.

Objective Quiz:

  1. Coral belongs to thee phylum _______.
    1. Chordata.
    2. Annelida.
    3. Cnidaria.
    4. Porifera.
  2. Corals are made up of compact colony of identical thing called as _______.
    1. Polyps.
    2. Plant.
    3. Plum.
    4. Planktons..
  3. Corals are _________.
    1. Living organism.
    2. Non-living organism.
    3. Both 1) and 2).
    4. None of the above.
  4. Polys are _______ like structure.
    1. Sac.
    2. Moon.
    3. Triangle.
    4. Square.
  5. The movement done by tentacles helps the polyps to get its ______.
    1. Food.
    2. Air.
    3. Sunlight.
    4. All of the above.

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