5th Grade Human Body and Genetics

The smallest unit of a living thing that can carry out the basic processes of life.

• cytoplasm
• atom
• chlorophyll
• cell

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In what way are both humans and bacteria the same?

• Both are living things.
• Both are non-living things.
• Both are multicellular organisms.
• Both are single-celled organisms.

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An organism has several major body systems that work together to allow the organism to survive. Which best describes this organism?

• It is a single-celled organism.
• It is a multi-celled organism.
• It is a simple organism.

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Which is an example of a single-celled organism?

• amoeba
• insect
• fish
• worm

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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

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

• circulatory system
• digestive system
• muscular system
• nervous system

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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.

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

• skeletal system
• circulatory system
• respiratory system
• muscular system

Which example best shows structures that make up the digestive system in the human body?

• heart, blood, vessels
• nose, trachea, lungs
• brain, spinal cord, nerves
• esophagus, stomach, intestines

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Made of the muscles attached to bones that create movement

• nervous system
• circulatory system
• skeletal system
• muscular system