I think you're confused. There are only two sexes, male and female. Sex is what you were biologically born as from birth, while gender is what you choose to identify as. Gender is a choice, sex isn't. They couldn't discover any other genders because at the time they probably didn't even know what gender was like three thousand years ago, therefore they couldn't look like a different gender.
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>
