With growth rates of 0.3 to 2 centimeters per year for massive corals, and up to 10 centimeters per year for branching corals, it can take up to 10,000 years for a coral reef to form from a group of larvae (Barnes, 1987).s the corals grow and expand, reefs take on one of three major characteristic structures fringing, barrier or atoll. Fringing reefs, which are the most common, project seaward directly from the shore, forming borders along the shoreline and surrounding islands.
Dry skin. This is the most common cause of total body itching and is especially likely in the dehydrated air of heated winter interiors. The main danger of such itching is scratching, which can lead to skin infections caused by resistant bacteria. Faithful use of emollient creams can help, especially after bathing or showering.
There are likely to be other possible causes, so ask your doctor about your symptoms. 1  Rash. 2  Itchy rash - see causes of itchy rash. 3  Skin inflammation. 4  Pregnancy. Spots. 5  Blisters. Allergies. 6  Hives. Dry  skin. Fungal 1  infection. Some causes of local reaction or a particular area of skin itching include:  Eczema.