Human Body Systems

How does the muscular system depend on the nervous system?

• The nervous system transports blood to the muscles.
• the nervous system provides support for the muscles.
• The nervous system supplies food and oxygen to the muscles.
• The nervous system send signals to the muscles to cause movement.

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Which system is most closely associated with the brain?

• nervous
• muscular
• circulatory
• respiratory

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Which of the following best describes the job of the skeletal system?

• Gives shape and support to the body.
• Sends messages from the stomach to the brain.
• Brings in and breaks down all nutrients for the body.

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Karlie accidentally touches a hot surface and then quickly pulls her hand away.  Which two systems in the human body were involved with her action and reaction?

• nervous and muscular
• skeletal and circulatory
• nervous and respiratory
• muscular and respiratory

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

• Multi-celled organisms must reproduce.
• Multi-celled organisms must obtain energy.
• Multi-celled organisms have microscopic body structures.
• Multi-celled organisms have specialized cells to perform life functions.

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A unicellular organism is best described as being

• a complex organism.
• a microorganism.
• an organism with specialized cells.
• an organism with different types of tissues.

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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 ear, remove waste, or reproduce.
• Plants contain many specialized cells that perform different functions.

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Which is an example of a single-celled organism?

• acorn
• amoeba
• honey bee

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Why do multicellular organisms need transport systems?

• Most have cells that are not able to exchange gases with the outside environment.

• Most have cells that are unable to grow and survive in their environment

• Most have cells that need food from sources outside their environment

• Most have cells that require more energy to survive than single-celled organisms.

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Which is a function of the cardiovascular system?

• to move water throughout the body

• to provide structural support for the body

• to eliminate waste from the body

• to transport gases throughout the body