The answer is a pathogen
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Answer:
Relative age only tells us the order in which events occurred, from the earliest to the most recent. Knowing the actual date of an event allows us to say exactly how old something is or how long ago it actually took place.
Explanation:
<span>They are not visible because the chromatin coils up,shortens,and thickens.</span>
Nucleic acids would be the answer to your question
