Levels of Organization in Biology

This video covers the organization of multicellular organisms, focusing on the levels of organization from cells to organ systems. It explains how cells form tissues, tissues form organs, and organs form organ systems, using examples from both animals and plants. The video aims to provide a clear understanding of these biological concepts, emphasizing the interrelated functions of different levels of organization.

What is the basic unit of life in multicellular organisms?

• Cell

• Organ System

• Organ

• Tissue

Which of the following best describes a tissue?

• A collection of different organs

• A system of related organs

• A single cell

• A group of similar cells working together

What is an example of a tissue in plants?

• Leaf

• Brain

• Xylem

• Heart

Which of the following is NOT an example of an organ?

• Xylem

• Stomach

• Leaf

• Heart

What is the main function of an organ?

• To group similar cells together

• To perform a specific function using different tissues

• To connect different organ systems

• To store nutrients

Which organ system is responsible for digestion?

• Circulatory system

• Nervous system

• Digestive system

• Respiratory system

What is the role of an organ system?

• To perform a specific life process using related organs

• To store energy

• To produce cells

• To protect the body

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

• Respiratory system

• Digestive system

• Nervous system

• Root system

What is the correct order of levels of organization from simplest to most complex?

• Tissue, Cell, Organ System, Organ

• Cell, Tissue, Organ, Organ System

• Organ, Tissue, Cell, Organ System

• Organ System, Organ, Tissue, Cell

In a plant, what is formed by a group of xylem vessels?

• Organ System

• Organ

• Cell

• Tissue