[Q]: Greg was studying behavior of different organisms. He noticed that some organisms were showing inquiline behavior. He noted that behavior as case A. Then he noticed some other organisms didn't show any inquiline behavior. He noted that behavior as case B. He was astonished by the complicated interactions among organisms. Would case A have higher or smaller risk of predation than case B?
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[A]: smaller

[Q]: Alexiev and Sabrina were enthusiastic chemistry students completing the first experiment of their new course. They both started the experiment with pure water, and had to perform different experimental protocols to make changes to the water. At the end of the experiment, both of them measured the concentration of hydronium ions present in their reaction mixtures. Alexiev had a high concentration of hydronium ions present, while Sabrina had a low concentration present in her mixture. Which person's mixture, Alexiev's or Sabrina's, would be more harmful if swallowed?
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[A]: Alexiev's

[Q]: Jacob is performing a chemistry experiment using two different liquids. Before starting the experiment, Jacob is told that liquid A molecules have strong intermolecular forces, while liquid B molecules have weak intermolecular forces. Jacob now has to decide how to use this information to guide him as he develops the experimental procedures for these two liquids. Which liquid will have higher surface tension?
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[A]: liquid A

[Q]: Harry and Kim studied ancient humans. Kim studied a 15000 year-old settlement, before humans invented agriculture, while Harry studied a 5000 year-old village. Which student studied about a village that had a less dependable food supply?
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[A]:
Kim