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From the air, coral reefs may form large patches of blue, green and brown shapes.The deep-water areas appear dark blue in color while the shallow sandy patches appear light blue-green. Up close, the thin veneer of living organisms, both plants and animals that form the coral reef, is visible in many colors.The majority of the coral’s energy needs are provided by tiny algae called zooxanthellae, which live inside the coral and produce food using the sun’s energy from carbon dioxide and water.The protist algae and the coral animals live together in a symbiotic relationship.Corals live in areas where the temperature ranges between 25° and 29° Celsius (77° to 84° Fahrenheit).Because they are sensitive to changes in these conditions, corals are at risk of being damaged or destroyed.Coral reefs are only found in tropical and sub-tropical waters around the world.

Corals are invertebrates; like shellfish, they have no spinal column or internal bones.There are two general types of corals—hard corals and soft corals.Hard corals take calcium and carbonate out of seawater and turn it into an external skeleton that forms beneath their tissues.This external skeleton is deposited on top of the existing skeleton; the corals grow upward and outward on top of this skeleton.Corals are mainly colonies, budding new animals as the thin layer of tissue on top of the external skeleton expands in area.

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  1. And yes, situations change, and I’m fully covered for changing situations as well – because of the exact same thing that covered me for the things above – ADAPTABILITY.