Cells and Human Body Systems Review

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.

Which body system sends electrical signals to all other body systems?

• circulatory system
• nervous system
• digestive system
• skeletal system

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 system of the human body provides protection to most of the major organs?

• Nervous System
• Muscular System
• Skeletal System
• Circulatory System

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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Bone cells need nutrients. Which two systems get nutrients to bone cells?

• the digestive system and the circulatory system
• the circulatory system and the respiratory system
• the respiratory system and the skeletal system
• the skeletal system and the digestive system

Which two human body systems are most responsible for getting oxygen to cells?

• digestive and skeletal
• skeletal and circulatory
• circulatory and respiratory
• respiratory and digestive
  

Which best explains how the muscular system relies on the respiratory system?

• The respiratory system cools the muscular system.
• The respiratory system acts as the support system for the muscular system.
• The respiratory system brings oxygen into the body for the muscular system to use.
• The respiratory system provides nutrients for the body to use as fuel.

Which best describes the relationship between the cardiovascular system and the muscular system?

• The cardiovascular system captures carbon dioxide from the air for muscle energy.
• The cardiovascular system produces red blood cells to bring oxygen to muscles.
• The cardiovascular system provides a framework for muscle movement.
• The cardiovascular system delivers oxygen for muscle energy.

Which is responsible for providing oxygen to cells?

• skeletal
• nervous
• digestive
• cardiovascular

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