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Predators rarely kill and eat all available prey because: 1)predator and prey species often occupy the same trophic level 2)in an ecosystem prey species often lack protective mechanisms to deter being eaten 3)many predator and prey species have a commensalistic relationship 4)predator species often will switch its prey as one prey species becomes less abundant

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Why do you think its 3?
i think its 1
read the keyword on 3 - commensalistic relationship. Make sure you know the definition before you pick it

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Other answers:

one benefits, and the other neither benefits or get harmed... prey always get "harmed"
I believe it is one because if a predator eats all of the prey in its trophic level, then it is going to be very hard for the predator to survive.
ok so either 1 or 3...
i highly doubt its 3
ok so 1?
yes i think its one (90% positive)
alrighty thanks peoples
you are welcome
you have to understand why it is number 1
If you want more information, look up trophic levels in your book or online
predators, except homo sapiens, have no concept of future planning of resources and scarcity. They mostly just eat and eat and eat...

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