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energy resources such as coal and oil, which are being used up much more quickly than they can...
the membrane that surrounds the nucleus. It is similar in structure and function to the cell...
a pore in nuclear membrane that enables macromolecules to enter and leave the nucleus.
a non-membrane bound structure made of proteins and nucleic acids that occurs within the nucleus...
a thick, sticky liquid in which all the other nuclear components are suspended.
the part of the cell that controls all the activities of the cell and plays an important role in...
a chemical substance found in food that is essential for maintaining life.
is the supply of materials, in the form of food, required by organisms and cells to stay alive...
is a medical condition in which excess body fat has accumulated to the extent that it may have...