Answer :

1.Understanding life. Primarily, studying biology gives you the essentials and primal knowledge of life and how and what you can perceive from it, may it be various fields of zoology, botany or anthropology, psychology, sociology and etc. It lets you understand the different anatomies, physiologies and behaviours on how they act independently, interact and influence one another.  
2.Protecting life. It provides a sense of preserving life as your upmost goal in studying biology. You came to an actualization to delve into this science as to be a steward and a developer.
3.Responsibility. It comes with ethics. You become concerned with how actions of a certain populace of a species can affect the entire ecosystem. Human behavior has massive effects to the biosphere.

4.Advancement. The improvement and enhancement on how we can preserve and understand life and the human populace develop and utilize the earth without damaging its vital components.
5.Involve in the current issues and participate. You can be part of a responsible scientist and individual, a citizen of science to stop and help grow the serious concerns of today’s abusive human behaviours and life-threating concerns.