We are living in an environment that gives us life. Therefore, there are a lot of biological pathways and processes that goes on each day of our lives - while brushing your teeth in the morning, while watering your plants at your backyard, while sitting in your chair at school and listening to your teacher, while you watch tv after eating dinner. All these activities and a lot more constitute complex biological reactions that you are not aware of. So you see, biology is happening in our life, whether we like it or not
