Layering is the most obvious feature of sedimentary rocks. The layers are piled one on top of the other.
The answer to this question is:
<span>Michelle is observing a sand sample under a microscope when she finds many perforated shelled organisms. Further testing reveals that these shells are made of calcium carbonate. How should she classify these organisms?
</span>"<span>They are foraminiferans, belonging to phylum sarcodina of protozoa."
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Hoped This Helped, </span><span>
Ariwillow36
Your Welcome :) </span>
answer is the first1 off spring to parants