Unit 4 - Level of Organization

A collection of cells with similar functions form ____

• an organ
• a tissue
• an organism
• an organ system

What is considered to be the lowest level of organization in a multicellular organism?

• cell
• organ system
• tissue
• organ

The smallest units of life that make up all living things are ____

• tissues
• cells
• organs
• organ systems

The stomach, small intestines, and large intestine are all organs.  When they work together to process food, they form a functional unit known as _____

• an organism

• an organ system
• a tissue
• a cell

Which of the following correctly orders the organization in plants and animals from least to complex?

• Cell --> Organ --> Tissue --> Organ System --> Organism
• Atom --> Cell --> Organ --> Tissue --> Organism
• Cell --> Tissue --> Organ --> Organ System --> Organism
• Organism --> Organ System --> Organ --> Tissue --> Cell

Tissues working together to perform specialized functions are called ___

• an organ
• an organism
• a population
• a cell

In the sequence from simplest to most complex level of organization, which level is one level more complex than cells?

• Cells
• Tissues
• Organ Systems
• Organisms

Lungs, Diaphragm, Brain, Ribs, Skulls, and Heart are all examples of ____

• Cells
• Organs
• Tissues
• Organ Systems

The respiratory system is made up of the airways, lungs, and respiratory muscles. The lungs are classified as ______

• cells
• tissues
• organs
• organisms

Hepatocytes are the main type of cells in the liver.  Hepatocytes combine to form the next more complex level of organization, called _____

• an organ
• a tissue
• an organism
• an organ system