Unicellular vs Multicellular Organisms

Which of these is a 'life process' carried out by all organisms?

• photosynthesis
• growth

• fermentation
• asexual reproduction

Basic unit of life

• Cell
• Tissue
• Organ
• Organ System

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Which best describes the main job of most cells in multicellular organisms?

• Cells work to keep themselves alive.
• Cells work to keep the organism alive.
• Cells work to release needed materials.
• Cells work to store unneeded materials.

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Which statement would most likely be found in an article about multi-celled organisms like plants?

• Plants have a simple structure.
• Plants contain only one cell that performs all functions.
• Plants do not need to eat, remove waste, or reproduce.
• Plants contain many specialized cells that perform different functions.

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How are multi-celled and single-celled organisms different?

• Multi-celled organisms need energy to survive, while single-celled organisms need no energy to survive.
• Single-celled organisms can be seen without using a microscope, while multi-celled organisms are microscopic.
• Multi-celled organisms have large numbers of specialized cells to perform a variety of life functions, while single-celled organisms complete life functions with one cell.
• Single-celled organisms have large numbers of identical cells that all perform the same function, while multi-celled organisms have cells that are all different and perform different life functions.

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How are single-celled organisms and multi-celled organisms similar?

• Both need food for energy and growth.
• Both have a skeletal system for support.
• Both require the interaction of many cells to survive.
• Both are able to carry out all life functions in only one cell.

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Which best describes a multi-celled organism?

• basic
• simple
• uniform
• complex

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What does unicellular mean?

• Many cells

• 2 cells

• 1 cell

• 0 cells

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What is an organism?

• A dead animal

• A living thing

• A pencil

• A shoe

What makes unicellular organisms unique and simple?

• They can do all life process as one cell.

• They have specialized cells.

• They must work with other unicellular organisms to divide the labor.

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