Exploring Levels of Organization in Biology

The video tutorial explains the cell theory, which consists of three main points: all living things are made of cells, cells are the basic unit of structure and function, and all cells come from pre-existing cells. It further explores the biological levels of organization, starting from cells, which form tissues, organs, and organ systems. An analogy is drawn between biological organization and a school structure to aid understanding.

What is the first point of the cell theory?

• Cells are the basic unit of structure and function.

• All living things are made of cells.

• Cells come from pre-existing cells.

• Cells are the smallest unit of life.

Which of the following is an example of something made of cells?

• A blue whale

• A rock

• A cloud

• A river

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What does the second point of the cell theory state?

• Cells are the building blocks of life.

• Cells come from pre-existing cells.

• All living things are made of cells.

• Cells are the basic unit of structure and function in all living things.

What does it mean that cells are the basic unit of structure and function?

• Cells are only found in animals.

• Cells are the largest part of an organism.

• Cells make up every living thing and ensure the body functions properly.

• Cells do not have any specific function.

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What is the third point of the cell theory?

• Cells are the smallest unit of life.

• Cells come from pre-existing cells.

• All living things are made of cells.

• Cells are the basic unit of structure and function.

What is the smallest unit of life?

• Tissues

• Organs

• Cells

• Organ systems

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What do cells form when they come together?

• Organ systems

• Tissues

• Organs

• Molecules

What are tissues made of?

• Molecules

• Organ systems

• Cells

• Organs

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What do organs form when they work together?

• Cells

• Tissues

• Organ systems

• Molecules

Which of the following is an example of an organ system?

• Stomach tissue

• Digestive system

• Lung

• Bone tissue