Levels of Organization in the Human Body

Front

What is the smallest unit of an organism or living thing?

Back

Cell

Front

How does an organ system differ from an organ?

Back

A system is more complex and contains several organs.

Front

When a group of organs work together to perform a particular function, they create a/an?

Back

Organ system

Front

What level of organization is the heart?

Back

Organ

Front

What level of organization is the stomach?

Back

Organ

Front

What is the level of organization that includes cells working together?

Back

Tissue

Front

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

Back

Organism

Front

What is an example of an organ system in the human body?

Back

Digestive system

Front

What is the function of tissues in the body?

Back

Tissues perform specific functions by grouping similar cells together.

Front

What are the four main types of tissues in the human body?

Back

Epithelial, connective, muscle, and nervous tissue.