The answer is D as there are fluctuations which means that changes in the population of one affects the population of the other. as prey pop increases predator pop increases leading to a decease in prey pop which causes predator pop to decrease due to lack of food then prey increases and the cycle repeats
A is or c is the correct answer
I think the answer is A
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Grow, reproduce, take in nutrients from the environment, respond to the environment, transport materials thru-out their body, produce chemicals