This document outlines the key concepts and tasks for a Natural Science unit on living beings. The unit will focus on vital functions like nutrition and reproduction in animals and plants using the area of interaction of health and social education. Students will develop their approaches to learning skills and characteristics of the IB learner profile through tasks like a webquest on nutrition, examining vital functions, leaf chromatography, and analyzing the three vital functions. The document provides objectives, criteria, and details on how the unit will be structured and taught.