What organ is this?

What organ(s) are these?

Which organ is responsible for thinking, memories, and telling other parts of your body what to do?

Which organ is responsible for bringing air, in and out of your body?

Which organ is responsible for breaking down and digesting your food?

Which organ is responsible for cleaning your blood?

Which organ is responsible for filtering your blood?

True or False: The skin job is to hold everything together and serves as the a protective, waterproof layer.