Tarea is a noun that means homework. Recall that a noun is a word or group of words that is the name of a person, a place, a thing, or activity or a quality or idea. This noun means schoolwork that a student is required to do at home. Thus, the students have a lot of homework in the biology class. On the other hand, nota means note, regla means rule and banda means band. Finally:
<em>Los estudiantes tienen mucha </em><em>tarea</em><em> en la clase de biología.</em>
To answer your question, i’ll need to know what this question is referring to. is it a question about a story? this unfortunately can’t be answered without the second piece.