An orange "Take Exam" button is active and you should be able to click on it. I have accessed your student portal and the buttons in the "Introduction to Veterinary Technology" module are all working properly. When I clicked on the "Take Exam" button for "Behavior" it opened the "Preview or Take an Exam Online" page. Everything seems to be okay.
If you continue to have problems please try refreshing your browser and then log onto your portal again.
I wish you continued success in your studies!