[Q]: Two teams studied two types of animals: team A studied predators, while team B studied grazers. They learned a lot from this experience. Which team learned about keystone species?
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[A]: team A

[Q]: Jesse wants to lose weight. She decides to do research on the types of food she's been eating and finds out they are excessively high in dietary lipids. She decides to cut back to a lower than normal amount of lipid consumption for a while. Will Jesse's new eating habit be healthy or unhealthy for her?
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[A]: healthy

[Q]: Gill and Ann were two fellow botanists. Gill studied alpine tundras extensively, while Ann studied tropical forests. They both discovered very interesting facts about nature and plants. Which person learned more about high-mountain summits?
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[A]: Gill

[Q]: Tim and Joe were two friends living near two different oceans. Tim lived on the Pacific coast while Joe lived on the Atlantic coast. Which friend sees more hypoxia in the ocean?
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[A]:
Tim