Select the text from the paragraph that best helps you understand that commensalism means a relationship between organisms that helps one without benefiting or harming the other. There may be more than one correct choice. Escherichia coll, better known as E. coli, is one of the most widely studied bacterial species, in part because it can be grown easily inside a lab When most people think of E. coli , however, they likely picture widespread recalls of produce and other food products due to contamination by this bacterium Indeed, certain strains of E coli can be harmful or even fatal to humans. Other strains, however,exist in commensalism with humans and other animals. For example a number of harmless strains flourish in human and animal intestines.

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Select the text from the paragraph that best helps you understand that commensalism means a relationship between organisms that helps one without benefiting or harming the other. There may be more than one correct choice. Escherichia coll, better known as E. coli, is one of the most widely studied bacterial species, in part because it can be grown easily inside a lab When most people think of E. coli , however, they likely picture widespread recalls of produce and other food products due to contamination by this bacterium Indeed, certain strains of E coli can be harmful or even fatal to humans. Other strains, however,exist in commensalism with humans and other animals. For example a number of harmless strains flourish in human and animal intestines.

Answer 1

"Other strains, however, exist in commensalism with humans and other animals.", "For example, a number of harmless strains flourish in human and animal intestines."

Answer 2

## Step1 The problem is about understanding the concept of commensalism in biology. Commensalism is a type of relationship between two organisms where one organism benefits from another without either causing harm or benefiting the other. ## Step2 From the presented text, we have to identify parts that provide insights confirming the definition of commensalism. ## Step3 One key statement in the text that provides evidence of commensalism is: "Other strains, however, exist in commensalism with humans and other animals." This statement explicitly uses the term commensalism to describe a particular relationship between some strains of E.coli and humans or other animals. ## Step4 The text also provides an example to further clarify the concept of commensalism: "For example, a number of harmless strains flourish in human and animal intestines." This example shows that these harmless strains of E. coli (the beneficiary) can thrive without causing harm or benefiting their host (humans and animals).

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