Read this high school graduation requirement for science carefully:
Two years, including biological and physical sciences.
English is also required, so why don't you diagram that statement for the class.
I'm sorry. I was looking only at graduation requirements.
From your post,
"Two years, including biological and physical sciences."
This means if there are chemistry and physics electives, biology can be avoided.
I've already been through class scheduling with my two high school kids here in the People's Democratic Republic of Illinois. It's not rocket science.
Your chart list biology as required for freshman admission to a specific university. Not graduation from high school.