Broad-spectrum antibiotics have minimal effect on the normal microbiota
Indicate whether this statement is true or false.
FALSE
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What assumption is made by researchers when designing experiments to model how life may have arisen on Earth?
a. The chemical reactions of living things are only possible inside living systems. b. Living organisms are composed of elements commonly found on Earth, but absent in the rest of the universe. c. Conditions on Earth have not changed over time. d. Life arose on Earth from non-living matter. e. The development of living cells from nonliving matter was very rapid.
Tubular secretion is essential for ___
homeostasis.
a. pH b. water c. solute d. temperature e. sugar
What was the result of sham eating experiments?
What will be an ideal response?
In addition to breaking down food, what other valuable function does stomach acid perform?
A) Stomach acid converts waste molecules into bile. B) Stomach acid recycles chlorine. C) Stomach acid activates enzymes in the small intestine. D) Stomach acid kills bacteria and other pathogens in food.