unit 9 test review

What do a mushroom, an amoeba, and a 6^th grader have in common?

• They all belong to the Animal Kingdom.

• They are all composed of one or more cells.

• They are all classified as invertebrates.

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What is the best reason that fire is NOT considered a living organism?

• It requires fuel to burn.

• It can move from place to place.

• It is not composed of cells.

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Viruses are not considered living organisms because they are not composed of —

• DNA

• protein

• cells

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The discovery of the cell was made possible by the invention of the microscope. In 1665, Robert Hooke first discovered and named the cell as he was observing dead plant cell walls of cork under a microscope. Over the next century Matthias Schleiden, Theodor Schwann, and Rudolph Virchow contributed to this work. Eventually, in 1839, the cell theory was formulated. It states that living organisms are composed of one or more cells, the cell is the basic unit of structure and organization in organisms, and cells arise from pre-existing cells.

What type of organisms are made of cells?

• Only plants and animals are made of cells.

• Only animals are made of cells.

• All organisms are made of cells.

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The cell is classified as —

• prokaryotic

• eukaryotic

• periodic

• nucleotic

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What is the best reason that fire is NOT considered a living organism?

• It requires oxygen to burn.

• It can move from place to place.

• It is not composed of cells.

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The cell is classified as —

• prokaryotic

• eukaryotic

• nucleotic

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Which of the following characteristics would identify this cell as eukaryotic?

• Absence of a cell membrane

• Presence of flagella

• Presence of a nucleus

The absence of which cell structure would indicate a cell is prokaryotic?

• Ribosomes

• Nucleus

• Cell membrane

Which group is the broadest group in the modern classification system of living organisms?

• Phylum

• Class

• Domain