Identify a key concept or foundational theory from the first four weeks of class

Identify a key concept or foundational theory from the first four weeks of class and in half a page discuss how it applies to your current work environment or a recent social, political or business event. Include the chapter and sub topic from your textbook.

The concept that I have selected from the last weeks of this course is biodiversity. Biodiversity is the  availability of different forms of life on earth. This concept is really necessary to understand because this helps us understand why different species are on the earth. I mean why not just humans. When we are familiar with the concept of biodiversity, we come to realized that different forms of life support each other in one way or another. Biodiversity also enables us to understand the genetic differences and similarities between different species of living things. This understanding have let humans know that we, humans are related to most of the species on the earth when we look at the genetic composition.