The answer is (B) Brain. This is because the brain is a part of what is known as the nervous system just as the lungs are part of what is known as the respiratory system.
Answer:
DNA cloning allows a copy of any specific part of a DNA or RNA sequence to be selected from the millions of other sequences in a cell and produced in unlimited amounts in pure form.
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The columns on the periodic table are called groups or families. The elements in the same group have similar properties. One of these particles is electrons.
If I should go to work or not.
It means the substance can't mix or dissolve in water. This is because the molecules don't attract to eachother. Oil won't mix with water because it is non polar.
