Please answer this: Mike is studying the predator prey relationship. He is specifically studying three species, species A, species B, and species C. Species A is a predator; species B is the prey; and species C is a plant species that species B lives on. Mike now needs to figure out how the predator prey relationship balance the ecosystem. Which species can be regarded as the keystone species, species A, species B, or species C?
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Answer: species A

Please answer this: Two researches studied the Earth's mantle. Clint studied mantle melting, and his pal Uri decided to study other mantle related phenomena. Which researcher read more about a rise in the mantle's temperature?
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Answer: Clint

Please answer this: Two groups of soldiers started different training programs. Blue group did weight training for 3 months, while Brown group ran 3 miles a day for three months. The Captain observed different results on each group. Which group increased the strength of their muscles?
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Answer:
Blue