I only want to visit the zoo is that possible ??

No.

No, but the are so many neat things to see and do in the park.

Admission gets you intk the whole park. That is what I love about it. There are shows, rides, and the zoo portion.

So even if I don't do the rides I'm still gonna pay 90 sum dollars ??

You don't have to do the rides plenty of animals to see and do

Go to a proper zoo. In Busch Gardens you can do the train ride through the animals habitat or do the safari on a truck (40 bucks extra). On the train you won't see much.

There's no difference in price

Yes, you don't have to do the rides