Biodiversity Project - Troubles with some data!

Hello hello! I am not sure if I am doing it right, or if i am doing it. The thing is that if you check my project, my biggest problem is with the questions that i wanted to solve number 7 and number 8.

LINK TO MY PROJECT

I have the same amount of species, and total observations per category in each park. So there are tow posible solutions, one it is really wrong haha, and I am making a mistake in some of my merges. Ooooor it is like that and the data frame we have is kind of the same, so we have the same amount of species in each park, but what differ is the amount of observations.

Thanks to all of you that took your time to help me :wink: