Explain the relationship between the predator and prey in terms of energy transfer.

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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the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.