Levels of Biological Organization- Ecology

Why are biological levels important?

• • Helps us to relate levels to each other and the whole system

  
  

• • So we can understand a single organism

  
  

What is considered the most basic living level of organization?

• Tissue

• Organ

• Cell

• Organism

All living things are made up of

• organs

• one or more cells

Which of the following correctly lists biological levels from simplest to most complex?

• Organ, Tissue, Organ System

• Tissue, Organ, Organ System

• Organ System, Organ, Tissue

• Tissue, Organ System, Organ

What is formed when all organ systems in a living being work together?

• A tissue

• An organ

• An organism

• A population

An organism is

• one individual living thing

• a group of living things together

Organisms that can breed with each other belong to the 

• same group

• same organism

• same species

• same family

A group of organisms that belong to the same species and live in the same area are called

• 
  

• organ system

• species

• population

• community

A group of different types of organisms living in the same area are  

• 
  

• population

• community

• ecosystem

• biosphere

Factors in an area that are not living, like a rock, water, air or climate are considered

• 
  

• biotic

• abiotic