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A _____________ makes their own food to get energy.

• producer

• consumer

• decomposer

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A _____________ gets energy by eating something else.

• producer

• consumer

• decomposer

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Where does most of the energy on earth come from?

• Heat

• Electricity

• Sun

How many kinds of consumers are there?

• 3

• 7

• 4

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Which is NOT a consumer:

• Carnivore

• Herbivore

• Omnivore

• Scavenger

• They are all consumers!

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An amoeba is a single-celled organism. Which best describes the amoeba?

• It has many cells that function as a simple system.

• It has many cells that function as a complex system.

• It has one cell that can carry out everything it needs to survive.

• It has one cell that needs other cells to help it survive and thrive.

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Which best describes a difference between single-celled organisms and multicellular organisms?

• Single-celled organisms are simple, while multicellular organisms are complex.

• Single-celled organisms have many functions, while multicellular organisms have one function.

• Single-celled organisms can live without water, while multicellular organisms cannot live without water.

• Single-celled organisms can only be found in one specific environment, while multicellular organisms can be found anywhere on Earth.

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Is it possible for an organism to survive with only one cell?

• no, because organisms need many cells to be able to perform functions for life

• yes, as long as the organisms can perform all functions needed for life in that one cell

• no, because organisms cannot complete all necessary functions for life in such a small space

• yes, as long as the organism has multiple specialized parts with each performing a specific function

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Which best describes how single-celled and multicellular organisms are similar?

• Both require energy to survive.

• Both require fresh water to survive.

• Both require direct sunlight to survive.

• Both rely on many other cells to survive.

Bacteria often live inside the body of a living host, such as a dog. Which bestdescribes 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 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 as well as cells from the host to carry out life processes.

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