Answer:
Is this a question or just something nice?
{if it's a question i will edit and answer}
Explanation:
That's awesome did you write that?
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.
It arranges events in order from first to last........
Beautiful is what I would say