Body Systems

Front

What is the main function of the lungs in the body?

Back

The lungs are responsible for gas exchange, taking in oxygen and expelling carbon dioxide.

Front

What are the smallest units of living things?

Back

Cells are the smallest units or parts of living things; they are the body's building blocks.

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Front

What distinguishes unicellular organisms from multicellular organisms?

Back

Unicellular organisms consist of a single cell, while multicellular organisms are made up of multiple cells that work together.

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NGSS.MS-LS1-1

Front

Why do multicellular organisms need many cells?

Back

They need many cells working together to meet their basic needs.

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Front

What is the primary role of the digestive system?

Back

The main job of the digestive system is to break down foods into nutrients that can be used by the body.

Front

What is the function of the circulatory system?

Back

The circulatory system pumps blood throughout the body, delivering oxygen and nutrients to cells.

Front

What is homeostasis?

Back

Homeostasis is the process by which the body maintains a stable internal environment despite changes in external conditions.

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Front

What are organs?

Back

Organs are structures made up of different types of tissues that work together to perform specific functions.

Front

What is the role of the brain in the body?

Back

The brain controls and coordinates all body functions, including thoughts, movements, and responses to stimuli.

Front

What is the function of the skeletal system?

Back

The skeletal system provides structure, support, and protection for the body's organs and allows for movement.