Bio - Levels of Organization/ Body Systems

Which of the following is the correct order of organization in living things from most basic (simple) to most complex?

• Organism, cell, tissue, organ, organ system

• Organ system, organ, tissue, cell, organism

• Cell, tissue, organ, organ system, organism

• Cell, organ, tissue, organ, organism, organ system

The smallest basic unit of life is the

• cell

• organism

• organelle

• molecule

A group of similar cells that work together to perform a specific function is a/an

• organ

• organism

• organ system

• tissue

The heart contains different types of tissue. What level of organization is the heart?

• cell

• organ system

• organ

• tissue

This picture represents an example of a/an

• organ

• organ system

• tissue

• cell

This picture represents an example of a/an

• cell

• tissue

• organ

• organ system

A structure made of two or more tissues that work together is a/an

• organ system

• cell

• organ

• tissue

A group of organisms of the same species living in the same area is known as a ___________.

• Individual

• Population

• Community

• Ecosystem

A group of organisms and the biotic (living) and abiotic (non-living) factors that impact them is known as a/an ___________.

• Individual

• Population

• Community

• Ecosystem

Which of the following is an example of a population?

• an elephant

• a forest

• the savannah

• pack of wolves