Cell Theory and Classification

The invention of the microscope made it possible for people to discover and learn about

• Plants
• Skin 
• Animals 
• Cells

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When cells are damaged, new cells are created by cell a process called cell division. How does the cell theory support this fact?

• It states that all cells have a nucleus which divides.

• It states that all living things are made up of one or more cells.

• It states that cells come from previously existing cells.

• It states that the basic units of structure and function are cells.

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The ___ is the basic unit of sturucture and function of organisms

• atom
• cell
• matter
• all other answers are correct

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Which statement is a part of the cell theory?

• all cells come from preexisting cells
• bacteria are prokaryotic cells
• eukaryotic cells are complex
• humans are multicellular

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Which of the following is NOT a cell theory.

• All non-living things are made of cells
• All cells come from pre-existing cells
• Cells are the basic unit of structure and function of all living things

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Rocks are not living because

• they never move
• they aren't needed for humans
• they are not made of cells
• they don't break down

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All living things are made up of

• Prokaryotic Cell

• Eukarytoic Cells

• Either prokaryotic or eukaryotic cells

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Cell theory was first proposed in 1838. Evidence obtained through additional scientific investigations resulted in the current cell theory. Which statement describes a component of the original cell theory that was removed because of the new scientific knowledge?

•  All living things are made of cells.
• All cells come from other preexisting cells.
• Cells form through spontaneous generation.
•  Cells are the basic structural and functional units of life.
  

 Cells are the basic structural and functional units of life.

• Plants have cells but animals do not.
•  They are both made of one or more cells. 
• They both come from the same kind of cell.
• They both come from a non-living organism.

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Cell theory states:

• All living cells must have a cell wall.
•  All living cells require glucose for survival.
• The basic unit of life is a cell.
• All cells contain a nucleus

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