Human Body Systems Review

What is the main reason multicellular organisms like humans have developed transport systems?

• Because cells need exercise

• Because not all cells can directly exchange substances with the environment

• Because not all cells can directly exchange substances with the environment

• Because cells need to move around

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Which system is responsible for bringing oxygen into the body and removing carbon dioxide?

• Digestive system

• Circulatory system

• Respiratory system

• Muscular system

The stomach, small intestine, and large intestine are all parts of which body system?

• Respiratory system

• Digestive system

• Nervous system

• Skeletal system

How are the digestive and respiratory systems similar?

• They both pump blood

• They both protect organs

• They both remove waste from the body

• They both store nutrients

Which statement best describes a characteristic of multicellular organisms?

• They have only one type of cell

• They have differentiated cells with specialized functions

• All their cells touch the external environment

• They don't need transport systems

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What is the primary function of the circulatory system?

• Breaking down food

• Supporting the body

• Transporting blood throughout the body

• Filtering air

Which system provides structure and protection for internal organs?

• Skeletal system

• Muscular system

• Respiratory system

• Circulatory system

How do the nervous system and skeletal system work differently?

• The skeletal system moves while the nervous system stays still

• The nervous system protects organs while the skeletal system sends messages

• They don't work differently

• The skeletal system protects organs while the nervous system sends messages

Which system allows you to move your arms and legs?

• Digestive system

• Muscular system

• Nervous system

• Circulatory system

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What makes human bodies considered complex multicellular organisms?

• They have only simple cells

• They have one type of cell

• They have many different types of specialized cells

• They have only external cells

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