This is an

open book graded quiz. The grading scheme for this quiz is the same as the previous

graded open-book quiz.

The goal of this graded quiz is to help you connect

biological concepts with real-world applications. In this quiz, we follow

Prerna, a student at Plaksha, as she discovers the connection between biology

and sports. She realizes that the biomolecule that helps keep her hydrated due

to homeostasis also plays a role in water treatment—an important aspect of the

grand challenge of ensuring water security.

Trial

question:

What is the main theme of the graded quiz?