Subheads are basically the small titles that are smaller than the original title. Sequence is like First, Second, and etc. You basically have to explain why do subheads support the sequence of your text, passage, and etc. Hope that explains to you!
There is two reasons. This is what I think but I don't know if it's true. It's probably because the fence is too old and weak or the geese probably helped him climb out. I really need to re-read Charllote's Web again to figure out that part. But I think reason 1 makes more sense though. Hope I helped.
Answer:
Leeuwenhoek’s Discoveries Soon after Robert Hooke discovered cells in cork, Anton van Leeuwenhoek in Holland made other important discoveries using a microscope. Leeuwenhoek made his own microscope lenses, and he was so good at it that his microscope was more powerful than other microscopes of his day.
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