In the terms of energy transfer what predator and prey face in there relationship is typically a food chain. Due to the fact that prey get food from the lowest on the food chain which since the prey has eaten it gets "energy" from the food it ate and the predator would eat the prey hence gathering energy from the prey which it gained from a different food source.
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"heightened arousal" is the answer
Answer: A refrigerator
Explanation: Vacuoles work to store important cellular molecules. Refrigerators also act the same, storing important daily needs.
