Human Body and Genetics

Which best describes a multi-celled organism?

• basic

• simple

• uniform

• complex

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Which of these is a structure that is present in all organisms?

• stomach

• cell

• brain

• tissue

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Which best describes the circulatory system?

• It protects the major organs of the body.

• It breaks food into nutrients for the body.

• It sends messages to the brain to protect the body.

• It transports oxygen-rich blood throughout the body.

Which system is responsible for creating red blood cells?

• skeletal

• muscular

• nervous

• circulatory

How does the skeletal system benefit the nervous system?

• It protects the lungs.

• It protects the heart.

• It protects the brain and spinal cord.

• It protects the esophagus and stomach.

How are single-celled organisms and multi-celled organisms similar?

• Both need food for energy and growth.

• Both have a skeletal system for support.

• Both require the interaction of many cells to survive.

• Both are able to carry out all life functions in only 1 cell.

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Which system is controlled by involuntary muscle movement in the diaphragm?

• digestive

• respiratory

• nervous

• cardiovascular

Which best explains why humans are multicellular organisms?

• Human cells are too small to function alone.

• Human cells join together to form one large cell.

• Humans need many cells to carry out life processes.

• Humans have many systems that perform the same function.

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Which is an example of a learned characteristic?

• color of a dog’s fur

• color blindness of a person

• ability of a mouse to run a maze

• a person’s ability to roll their tongue

Which organisms are capable of surviving as a single cell?

• bacteria

• humans

• plants

• fish

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