Symbiosis Bell Ringer

This is an example of what

• commensalism
• mutualism
• parasitism

This is an example of 

• parasitism
• mutualism
• Commenalism

This is an example of

• parasitism
• mutualism
• commenalism

In which type of symbiotic relationship is one organism helped while another organism is neither benefited nor harmed?

• Mutualism
• commensalism

 Heartworm is a type of worm that enters a dog’s body through a mosquito bite. It produces offspring that lodge in the dog’s arteries and feed off of surrounding cells. Which type of relationship is this?

• Mutualism
• Parasitism

 Nitrogen-fixing bacteria live in protective nodules (bumps) on the roots of some plants. These bacteria are able to convert gaseous nitrogen from the air into a form of nitrogen that the plants can use. Which type of relationship is this?

• mutualism
• predation

How do mutualism and parasitism compare?

• At least one organism is helped in both cases.
•  At least one organism is harmed in both cases.