The answer is c because they’re more similar then a and b
B uses radiation so I would assume it would be the one using x rays
Answer:
Must have lived before.
Explanation:
For an organism to be classified as once living, an object must have been part of a living organism or is now dead. When a flower is plucked from a plant it is hard to distinguish between when it is considered alive and when it is now considered once living. An example of a nonliving object is an apple or a dead leaf.Apr 22, 2013
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I'm pretty sure it would be;
-breaking down living and dead plant material
