help with feedback loop (1 Viewer)

[pigas]

In biology we are learning about the feedback mechanism thing. I understand most of it. I know that also we may have to draw one in the exam. My problem is that all of the like 5 diagrams my teacher gave us are structured differently, so I don't know which one to learn the structure of to use in the exam. Does anyone have a template or something I could use?
Also, stupid question.. but is a feedback mechanism and loop the same thing? Kind of confused since these diagrams range from simple 3 box diagrams to like 10 box diagrams.

Thanks!

 

[Makematics]

id say include the one with most options. sometimes different sources like to separate one part of it into two, although sometimes this can be unneccesary, so it's really up to you to decide. I like to do 6-7 different parts in my diagrams for these.