Front

What is the level of organization of the human eye?

Back

The eye is an organ.

Front

To which system does the human eye belong?

Back

The eye is part of the nervous system.

Front

How do we know that bone is made up of living tissue?

Back

Bone is alive because it forms new bone tissue as we grow, replaces cartilage, and can repair itself.

Front

What is the structure composed of different kinds of tissue called?

Back

This structure is called an organ.

Front

What is an example of how different body systems work together?

Back

The respiratory system moves air in and out of the body, while the excretory system removes waste.

Front

What is the main function of the circulatory system?

Back

The main function is to transport blood to all parts of the body.

Front

What is the role of the respiratory system?

Back

The respiratory system is responsible for moving air into and out of the body.

Front

What does the excretory system do?

Back

The excretory system removes waste from the body.

Front

What is the function of the digestive system?

Back

The digestive system breaks down food into nutrients that can be used by the body.

Front

What is the role of the nervous system?

Back

The nervous system receives and interprets stimuli from inside and outside the body.