Levels of Organization

Front

What are the levels of organization in living things, ordered from smallest to largest?

Back

Cell, tissue, organ, organ system, organism.

Front

True or False: All living things are made of cells.

Back

True.

Front

What is the smallest and simplest level of organization in living things?

Back

Cell.

Front

Define 'cell' in the context of biological organization.

Back

The basic unit of life that makes up all living organisms.

Front

What is a 'tissue'?

Back

A group of similar cells that work together to perform a specific function.

Front

What is an 'organ'?

Back

A structure made up of different types of tissues that work together to perform a specific function.

Front

Define 'organ system'.

Back

A group of organs that work together to perform complex functions for the body.

Front

What is an 'organism'?

Back

An individual living thing that can function independently.

Front

Give an example of a tissue in the human body.

Back

Muscle tissue.

Front

Give an example of an organ in the human body.

Back

Heart.