me & my friend are doing a health project about the endocrine system & the respiratory system, so we need your help to define what they are. we are also looking on the internet & in books but are having a little trouble understanding it all. our project is due this Friday the 21 of september. so if you could hurry & answer this by ….. Wednesday the 19 that would be great!!!!! if you can’t answer it but know somebody who can or a website that can you can just like give me the info to the site or tell the person to answer here!!!! PLEASE!!!!