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.

the correct answer is b. possesses the characteristic of compartmentalization of organelles, wherein the organelles are bound by membranes.

explanation:

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.