Give one reason that almost all coral growth occurs within 40 meters of the ocean’s surface.

Corals are found in the ocean and covers a huge part of the ocean ecosystem. The corals provide shelter for many organism.

Corals are made of calcium carbonate and appears like hard rock structures layered one upon another.

The coral animals serves as a frame work for the algae to live within and below 40 meters there would not be enough of the sunlight that algae to perform photosynthesis.

So, they occur in the range of 40 meters from the ocean's surface.

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.

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