Cell Theory and Characteristics of Life

There are three parts to the cell theory. Which is NOT one of those parts?

• All organisms are composed of one or more cells.
• The cell is the basic unit of structure and organization in organisms.
• Cells spontaneously arise from carbon and nutrients carried in the bloodstream.
• All cells come from pre-existing cells.

What is the basic unit, or "building block" of life?

• Cell
• Molecule
• Organelle
• Atom

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Which scientist viewed a piece of cork under a simple microscope and first used the term "cell"?

• Robert Hooke
• Anton Von Leeuwenhoek
• Matthias Schleiden
• Theodore Schwann

Which scientist first viewed LIVING cells underneath a microscope?

• Robert Hooke
• Anton Von Leeuwenhoek
• Matthias Schleiden
• Theodore Schwann

Which of the following is NOT a statement included in the cell theory?

• All living things are made up of cells.
• Cells are the basic unit of life. 
• Cells can only come from other cells.
• Eukaryotic cells evolved from prokaryotic cells.

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What is the scientific term for maintaining a constant internal environment?

• biological balance
• homeostasis
• internal regulation
• xenobiographic balance

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What characteristic of life is being demonstrated?

• All living things evolve.
• All living things are made of cells.
• All living things reproduce.
• All living things require and use energy.

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What characteristic of life is best represented by this picture?

• All living things are made up of cells.
• All living things 
• All living things maintain homeostasis.
• All living things reproduce.

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A gazelle running away from a hunting lion is an example of ____________.

• homeostasis
• responding to stimuli
• growing and developing
• reproducing

Which characteristic of life is best represented by this picture?

• All living things are made of cells.
• All living things maintain homeostasis.
• All living things evolve
• All living things respond to their environment.