*sigh*... where do I even began... it seems that the person above did you wrong. Nocturnal means active at night, and Diurnal means active during the day. This means that Diurnals, such as us humans, use light to our advantage. If you’ve already answered whatever you needed to answer, I’m sure you’ve realized that the answer above was absolutely wrong... IF YOU HAVENT, OR YOUR TEACHER HASNT GRADED SOMETHING, PLEASE GO FIX IT NOW!!!!
(Just in case you need clarification, I believe the exact definition of Nocturnal is as follows:
Done, occurring, or active AT NIGHT. The exact definition of diurnal, in this case (for animals), is: Active IN THE DAYTIME. The person above was either messing with you or did not look up their facts. Either way, I’m sorry about the inconvenience. I hope I was able to help in time to make a difference.)