The correct answer is: A. Lactase insufficiency
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Answer:Mutualism
Explanation:a relationship in which both species benefit, is common in nature. In microbiology, there are many examples of mutualistic bacteria in the gut that aid digestion in both humans and animals. Commensalism is a relationship between species in which one benefits and the other is unaffected.
Answer:
A. Supine is lying on the back; prone is lying with the back facing up
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The answer is A , I hope this is not to late