Levels of organization of living things worksheet - Free Printable

Problem Analysis:

The worksheet is about understanding the levels of organization in biological systems. There are two main tasks:

1. Drag the photos to the corresponding level of organization.
2. Match the definition with the corresponding level of organization.

#### Task 1: Drag the photos to the corresponding level of organization
The levels of organization are listed as:
- CELL
- TISSUE
- ORGAN
- SYSTEM
- ORGANISM

We need to match the images provided to these levels.

#### Task 2: Match the definition with the corresponding level of organization
We need to match the definitions to the correct levels of organization:
- Basic unit of life
- Cells joined together
- A group of tissues working together
- A group of organs that perform a function
- A living thing

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Solution:

#### Task 1: Drag the photos to the corresponding level of organization

1. Image 1: A single bone (e.g., femur)
- This represents an ORGAN because bones are complex structures composed of different types of tissues (e.g., bone tissue, cartilage, blood vessels) working together.

2. Image 2: A skeletal system (bones forming a skeleton)
- This represents a SYSTEM because it shows multiple bones working together as part of the skeletal system.

3. Image 3: A human body
- This represents an ORGANISM because it shows a complete living being.

4. Image 4: A neuron (nerve cell)
- This represents a CELL because it is a single functional unit of life.

5. Image 5: A microscopic view of cells (e.g., epithelial tissue)
- This represents TISSUE because it shows a group of similar cells working together.

#### Correct Order:
- CELL: Neuron (Image 4)
- TISSUE: Microscopic view of cells (Image 5)
- ORGAN: Bone (Image 1)
- SYSTEM: Skeletal system (Image 2)
- ORGANISM: Human body (Image 3)

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#### Task 2: Match the definition with the corresponding level of organization

1. Basic unit of life
- This matches CELL because cells are the fundamental building blocks of all living organisms.

2. Cells joined together
- This matches TISSUE because tissues are groups of similar cells that work together to perform a specific function.

3. A group of tissues working together
- This matches ORGAN because organs are composed of multiple tissues that collaborate to perform a specific function.

4. A group of organs that perform a function
- This matches SYSTEM because organ systems consist of multiple organs working together to carry out a broader function.

5. A living thing
- This matches ORGANISM because an organism is a complete living entity made up of all the levels of organization working together.

#### Correct Matches:
- Basic unit of life → CELL
- Cells joined together → TISSUE
- A group of tissues working together → ORGAN
- A group of organs that perform a function → SYSTEM
- A living thing → ORGANISM

---

Final Answer:

#### Task 1:
- CELL: Neuron (Image 4)
- TISSUE: Microscopic view of cells (Image 5)
- ORGAN: Bone (Image 1)
- SYSTEM: Skeletal system (Image 2)
- ORGANISM: Human body (Image 3)

#### Task 2:
- Basic unit of life → CELL
- Cells joined together → TISSUE
- A group of tissues working together → ORGAN
- A group of organs that perform a function → SYSTEM
- A living thing → ORGANISM

Boxed Final Answer:
\[
\boxed{
\text{Task 1: CELL (Neuron), TISSUE (Microscopic cells), ORGAN (Bone), SYSTEM (Skeletal system), ORGANISM (Human body)} \\
\text{Task 2: Basic unit of life → CELL, Cells joined together → TISSUE, A group of tissues working together → ORGAN, A group of organs that perform a function → SYSTEM, A living thing → ORGANISM}
}
\]