This is called a mutation, which is a random genetic change that appears in the offspring and has no connection to the parents
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When an object turns around it’s internal axis (the earth turns on its axis) its a rotation. When an object turns around an external object (earth going around the sun) is a revolution.
The entire DNA<span> in cells can be found in individual pieces that are called </span>chromosomes<span>. The main </span>difference between DNA and chromosome<span> is regarding the role of genes. </span>DNA<span> stands for deoxyribonucleic acid. The </span>DNA<span> is basically made up of cytosine, adenine, thymine and guanine.
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The correct answer is option b.
One way by which wetland controls flood is by absorbing water from rivers. Wetland absorbs water and and store it. Afterwards it releases slowly.It behaves like a sponge. It also protects nearby houses flooding and vegetation too.It reduces the water flow and settles down the sediments and pollutants also.
The answer is Ordovician-Silurian.
The mass extinction thaw was most likely caused by the extinction that was most likely caused by the formation and retreat of glacier was the Ordovician-Silurian extinction. It is the second largest among the five major extinction events.