6.12a

The 3 parts of the Cell Theory are...?

• All living things are composed of cells

  Cells are the basic units of structure and function in living things

  All cells are produced from other cells

• All living things are composed of cells

  Cells are the basic units of dance and vibes in living things

  All cells are destroyed from other aliens

• All living things are composed of Jell-O

  Cells are the basic units of structure and function in living things

  All cells are produced from factories in Canada

• All living things are composed of cells

  Cells do karate and practice eating whole pies in their free time

  All cells are produced from other cells

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Bacteria is an example of a(n) ______ organism.

• unicellular

• multicellular

• nonliving

• mammal

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Which best describes a difference between a unicellular organism and a multicellular organism?

• A unicellular organism is a plant and a multicellular organism is a human.

• A unicellular organism has one purpose- to survive. A multicellular organism has many cells working together to keep the organism alive.

• A multicellular organism is simple and a unicellular organism is complex.

• A unicellular organism can only be found in certain biomes but a multicellular organism can be found anywhere on Earth.

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A scientist is trying to decide whether an organism is unicellular or multicellular. Which information would help the scientist most to make her decision?

• size of the cells of the organism

• what the organism eats

• how many types of cells are in the organism

• how fast the organism grows

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Which is an example of a single-celled organism?

• bird

• cricket

• snake

• bacteria

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Which best explains how a single-celled organism can survive without other cells?

• They do not need any substance from outside of the cell.

• They are able to perform all necessary functions within one cell.

• They do not need to perform more than one function to survive.

• They can't survive without other cells.

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Fungi and bacteria are both single-celled organisms. What do they most likely have in common?

• Both fungi and bacteria are large organisms.

• Both fungi and bacteria need sunlight and nutrients from the soil to be able to grow.

• Both fungi and bacteria can carry out all life functions in their one cell.

• Both fungi and bacteria are highly specialized to do only one job so they must work with other cells to obtain food.

Fish are multi-celled organisms with specialized cells. What would most likely happen if their specialized cells did not function properly?

• The fish would increase in size.

• The fish would decrease in size.

• The fish would grow and thrive.

• The fish would die.

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Bacteria often live inside the body of a living host, such as a dog. Which best describes how bacteria carry out the processes necessary for survival?

• Bacteria borrow cells from the host to carry out life processes.

• Bacteria use their many different cells as well as cells from the host to carry out life processes.

• Bacteria are made up of one cell which is responsible for carrying out all life processes.

• Bacteria use their many different cells to carry out life processes.

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Molly is reading a book in science class. She reads one sentence that says, “This organism is capable of surviving as a single cell.” Which organism is she most likely reading about?

• a mushroom

• a bacteria

• a flower

• a cricket

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