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The DNA double helix structure, proposed by Watson and Crick in 1953, was the basis of the hypothesis that DNA replicated in a semi-conservative manner. In 1958 the Meselson-Stahl experiment supported thi...

First thing first, we need to fully understand what we are asked and what topic we are being tested on. From this question, we can see that we are involved in electric fields, sicn...

Here it's best to start this question off by drawing a diagram.

Draw a square with each side having a length of 10cm and a circle which touches each side of the square only once (as eacn side of th...

The subjunctive mood in Spanish is used when the speaker wishes to express doubt (e.g. Dudo que..), wishes (e.g. Espero que..), to make an impersonal statement (when they are not certain...

The swash and backwash are both types of wave movement that influence the structure of a beach. The swash helps to build up the beach, loosing its energy and depositing its load of sand and silt onto the ...