- A large keyboard musical instrument with a wooden case enclosing a soundboard and metal strings, which are struck by hammers when the keys are depressed. The strings' vibration is stopped by dampers when the keys are released and can be regulated for length and volume by two or three pedals.Bernice Chong on the piano.
So, the cell theory states that living things consist of cells, that a cell is the basic structural and function the unit of life. And they are all cells come from pre-existing cells. So, scientist have been study living things for over 400 years. Later, the development of the microscope allows scientist to see cells for the first time because, it was hard to see. So, they can develop the cell theory by basic characteristics, of living things. You have to learn cells from other living things because, you have to learn what is the cell is look like, of its size or complexity. And it reminds us of studying of how living things work.
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