Unicellular vs Multicellular

Which is a characteristic of most single-celled organisms?

• They have a complex nervous system.

• They contain several different types of cells.

• They perform all life processes.

• They have a circulatory and a respiratory system.

Which statement best describes how a multicellular organism survives?

• Every cell carries out the same functions for the survival of the organism.

• The cells all have the same structures that allow the organism to survive.

• All life processes are performed by each cell for the survival of the organism.

• The cells have different functions, and together they are essential for the survival of the organism.

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Which statement best explains how a bacterial cell is capable of surviving as a single-celled organism?

• It is able to create new cells more slowly than other kinds of cells.

• It is large enough to capture the food it needs for growth.

• It is so small, it can survive in almost any place.

• It has the ability to carry out all of its life functions.

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In what way are insects and humans similar?

• Both are single-celled organisms.

• Both are multicellular organisms.

• Both have cells that capture sunlight to make food.

• Both have cells that carry out all life functions.

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Which is an example of a single-celled organism?

• amoeba

• insect

• fish

• worm

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Which statement best describes a bacterial cell?

• It contains more than one cell.

• It is a complete organism.

• It is part of a larger organism.

• It contains different kinds of cells.

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Which characteristic do single-celled organisms and multicellular organisms have in common?

• Both have cells with specialized functions for each life process.

• Both perform all life processes within one cell.

• Both have a way to get rid of waste materials.

• Both are able to make food from sunlight.

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 organism is also known as Single cell?

• multicellular organism

• unicellular organism

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Which of the following is an example of multicellular organism?

• Ameba

• Bacteria

• Plants

• Yeast

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