Levels of Organization

Which of the following is the correct order of organization in living things from most basic (simple) to most complex?

• a.  Organism, cell, tissue, organ, organ system
• a.  Organ system, organ, tissue, cell, organism
• a.  Cell, tissue, organ, organ system, organism
• a.  Cell, organ, tissue, organ, organism, organ system

A group of similar cells that come together to perform a specific function is a/an

• organ
• organism
• organ system
• tissue

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

• organ system
• organism
• tissue
• organ

The smallest level of organization of life in an organism

• tissue
• cell
• organ
• organ system

The cell is the building block of all living things.

• True
• False

A group of organs that work together to perform big jobs for your body is an organ system.

• True
• False

What is the difference between a cell and a tissue?

• cell is basic unit of life; tissue is group of cells that work as one
• cell is group of tissues; tissue is basic unit of life
• cell is basic unit of life; tissue is groups of different cells
• cell is group of organs; tissue is group of different cells

Tissue that works together to perform a function

• organ
• cell
• organ system
• organism

What do you have when organ systems work together?

• organs
• organism
• cells
• tissue

A group of cells that work together

• organ system
• organism
• organ
• tissue