New Guy with Some Questions

Hello everyone. I’m new to ATVs and don’t know very much about them. I bought a 2008 500 Sportsman with 565 miles on it. Two questions: Can anyone tell me where to find the dip stick for the transmission fluid and where the drain spot is? I downloaded the manual but it is very hard to understand. (I don’t know Jack about mechanics.) Last question: I found a piece under the bike (picture attached). Does anyone know what this is? Thank you for you help.

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