Levels of Organization

Which system is responsible for bringing in oxygen and releasing carbon dioxide?

Which level of organization is made up of different tissues?

What is a cell filled with (all of the empty spaces)?

Which system absorbs important nutrients like carbohydrates, fats, protein?

Name four organs.

What is the smallest organizational level of the human body?

Name two types of tissue.

Name four organ systems

What is the highest level of organization in the human body?

Which system sends and receives messages throughout the body?

Which organelle controls the cell and all of its activties?