Some species of bacteria benefit humans.
What information in the text supports this statement?
(A) S. mutans is a bacterium that causes cavities, and S. pneumonia is a bacterium that causes pneumonia.
(B) Fungi evolved the ability to produce anti-bacterial chemicals as they competed with bacteria over millions of years.
(C) The bacterium Streptococcus pyogenes causes strep throat and rheumatic heart disease.
(D) Species of bacteria belonging to the genus Bacteroides help the human body digest food.
Answer:
The text supports the statement that some bacteria are beneficial to humans through the example of Bacteroides bacteria aiding in food digestion.
Explanation:
The text supports the statement “Some species of bacteria benefit humans” through option D: “Species of bacteria belonging to the genus Bacteroides help the human body digest food.” This is an example of beneficial bacteria as it delineates how Bacteroides, a type of bacteria, aids in the digestion of food in humans. These beneficial bacteria are part of what is known as the human microbiome; they play a critical role in maintaining health, from aiding digestion to supporting the immune system.
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