Levels of Organization

Multicellular Organisms have how many levels of Organization?

• 1

• 5

• 7

• 3

What are the building blocks of life called?

Tissues are groups of cells that work together.

• True

• False

The heart is an organ.

• True

• False

The human body has many systems working together.

• True

• False

Complete the levels of organization:

​ cell, (a)   , organ ​, ​ (b)   , organism

• tissue
• organ system