The way you know the subject of the sentence is plural is because it takes a plural verb. You can see that the subject of the sentence is <em>the ova </em>(plural for of Latin word <em>ovum</em>, <em />meaning egg cell), and the verb it takes is <em>undergo </em>(plural)<em>, </em>and not <em>undergoes, </em>which would be singular.
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Proper Nouns: Principal Billsley
Improper nouns: letter,company, roller coaster, school’s backyard, opportunity
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Answer:
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