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Physics, 20.09.2019 13:00 danitamontecalvo

Which of the following is an example of commensalism?
a bird is hunted, killed, and eaten by a cat.
a bird eats berries, then spreads the seeds.
a bird finds an existing hole in a tree and builds a nest in it.
a bird finds a small shellfish on a beach, cracks its shell, and eats it.

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Which of the following is an example of commensalism?
a bird is hunted, killed, and eaten by...
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