Lesson 4: Levels of Organization

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In your own words, how would you describe levels of organization shown on the website?
Cells, tissues, organ, and organ system.

Match

Match the vocabulary to the correct definition.

• The basic building blocks of all living things. They carry out essential functions and can exist independently (like bacteria) or as part of a larger organism.

• Groups of similar cells that work together to perform a specific function. Examples include muscle tissue, nervous tissue, and epithelial tissue.

• Structures made up of different tissues that work together to perform complex functions. Examples include the heart, lungs, and liver.

• Groups of organs that work together to carry out major bodily functions. Examples include the digestive system, respiratory system, and circulatory system.

Cells

Tissues

Organs

Organ Systems

• Cells

• Tissues

• Organs

• Organ Systems

Labelling

Match the levels of organization to the correct picture.

Drag labels to their correct position on the image

Organ

Tissue

Cells

Organ System

Organism

Match

Match the levels of organization to the plant parts.

Cell

Tissue

Organ

Organ System

Organism

• Cell

• Tissue

• Organ

• Organ System

• Organism