Med Micro: 3rd Nine Weeks Exam 2022

Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.

• mutualism
• commensalism
• competition
• parasitism

A relationship between two organisms in which one organism benefits and the other is unharmed...

• Mutualism 
• Competition
• Parasitsm 
• Commensalism 

What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.

• commensalism
• mutualism
• parasitism
• predation

What type of symbiosis?  Skunks often live in burrows that have been dug and abandoned by woodchucks.  

• commensalism
• mutualism
• parasitism
• predation

Which symbols best describe parasitism?

• +,+
• +,-
• +,0
• -,0

A relationship between two organisms in which both organisms benefit. 

• Mutualism 
• Competition
• Parasitsm 
• Commensalism 

A bee and a flower work together to benefit each other. This is an example of a ______. The bee helps the flower by pollinating it and the flower helps the bee by providing it with nectar.

• commensalistic relationship

• parasitic relationship

• mutualistic relationship

• Parasitism
• Mutualism
• Commensalism
• Predation

Are microorganisms helpful or harmful?

• Helpful

• Both

• Harmful

• Neither

1. What is the human microbiome?

• All of the communities of microbes in and on the human body

• A drug that destroys helpful bacteria along with harmful bacteria

• A species of bacteria that helps protect humans against asthma

• A group of people in developed countries who are infected with Heliobacter pylori