Levels Of Biological Organization Biology Worksheets printable pdf download

Levels Of Biological Organization Biology Worksheets

Name:_________________________

Per:______Date:_________________

Levels of Biological Organization

Background: In unicellular (single-celled) organisms, the single cell performs all life functions. It

functions independently. However, multicellular (many-celled) organisms have various levels of

organization within them. Individual cells may perform specific functions and also work together for the

good of the entire organism. The cells become dependent on one another.

Activity 1: Use the descriptions on your handout to determine which level of organization (organelle,

tissue, organ, system, etc.) is being described. Write the level of organization in the parentheses

provided above the picture.

Activity 2: After reviewing the different levels of organization, use your handout to help you fill in the

following chart by selecting the example that meets the requirement listed. (Hint: You will need to use

“epithelial tissue” twice to complete the chart).

Organelle

Tissue

Organ

System

Protects by forming

a selective barrier

Breaks down food

for energy

Removes waste

Provides means of

transportation

Gives structural

support

Controls and

coordinates actions

Levels Of Biological Organization Biology Worksheets