21. Principles of Disease

Symbiotic Relationships

Multiple Choice
In the symbiotic relationship that forms a lichen, how do the fungal and algal (or cyanobacterial) partners primarily benefit each other?
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Multiple Choice
In forest ecosystems, which type of symbiotic fungi commonly forms mutualistic associations with tree roots and helps forests by enhancing water and mineral nutrient uptake?
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Multiple Choice
Which term describes mutualistic associations between plant roots and fungi that enhance nutrient and water uptake for the plant while providing carbohydrates to the fungus?
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Multiple Choice
In microbiology, associations between fungi and plant roots are called what?
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Multiple Choice
A relationship between two organisms in which one partner benefits and the other is harmed is termed:
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Multiple Choice
In symbiotic relationships, what type of relationship do mycorrhizal fungi have with most plants?
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Multiple Choice
Organisms that interact and live together on a permanent basis are in a relationship termed:
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Multiple Choice
In symbiotic relationships, mutualistic associations between plant roots and fungi are called:
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Multiple Choice
Our microbiome is composed of a variety of microorganisms that live within and on our bodies. Research has shown our microbiota protects us against infectious pathogens, creates vitamins and minerals we need, and helps us digest our food. We act as a safe residence and food source for our microbiota. The relationship humans have with their microbiome could be described as?
a) A commensal relationship.
b) A resident relationship.
c) A mutual relationship.
d) A parasitic relationship.
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Multiple Choice
Mycorrhizal fungi are best described as which type of symbiotic partner?
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Multiple Choice
Which of the following is an example of a commensal relationship?
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