Human Body

Which system in the human body includes the heart, blood, arteries, and veins?

• cardiovascular

• digestive

• muscular

• respiratory

Which statement best describes how a multicellular organism survives?

• Every cell carries out the same functions for the survival of the organism.

• The cells all have the same structures that allow the organism to survive.

• All life processes are performed by each cell for the survival of the organism.

• The cells have different functions, and together they are essential for the survival of the organism.

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Which is an example of a trait that is inherited?

• dimples

• intelligence

• weight

• favorite color

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In what way are the circulatory system and the nervous system similar?

• They both perform the same function.

• They are both structural systems.

• They are both transport systems.

• They both involve the same organs.

Which statement best describes the relationship between the nervous system and the muscular system?

• The nervous system controls the muscular system.

• The muscular system controls the nervous system.

• The nervous system provides nutrients and oxygen for the muscular system.

• The muscular system provides nutrients and oxygen for the nervous system.

Which human body systems are located throughout most of the body?

• digestive and respiratory

• skeletal and respiratory

• nervous and circulatory

• respiratory and circulatory

Some people have a “hitchhiker’s” thumb that allows them to bend their thumbs more than other people. How do these people most likely get this trait?

• They learn it from friends.

• They inherit it from their parents.

• They get it as a result of an illness.

• They get it as a result of their jobs.

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Which characteristic is the best example of an inherited trait?

• short hair

• eye color

• pierced ears

• long fingernails

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Which organ in the human body is primarily responsible for filtering blood?

• Liver

• Kidney

• Heart

• Lung

What is the main function of red blood cells in the human body?

• To fight infections

• To carry oxygen

• To clot blood

• To produce hormones