Biology and the study of Life

Objectives Define biology Identify possible benefits from studying biology Summarize the characteristics of life

What do we study in biology???

Biology—the science of life Chapter 1 The Study of Life 1.1 Introduction to Biology Biology—the science of life origins and history of life and once-living things structures of living things how living things interact with one another how living things function

What is Life????

1. Living things are made of one or more cells. Chapter 1 The Study of Life 1.1 Introduction to Biology 1. Living things are made of one or more cells. Cells are the basic unit of structure and function in all living things. Unicellular Multicellular

Activity List a many types of cells that you can think of on your paper.

A cell is the smallest unit capable of all life functions. The Study of Life Living Things Display Organization A cell is the smallest unit capable of all life functions.

All organisms grow and develop(change over time) The Study of Life Grow and Develop All organisms grow and develop(change over time)

All living things reproduce in one of the following ways: The Study of Life 4. Reproduces All living things reproduce in one of the following ways: Asexual reproduction - Producing offspring without the use of gametes. Sexual reproduction - Producing offspring by the joining of sex cells.

A behavior is a complex set of responses. The Study of Life Responds to Stimuli Living things will make changes in response to a stimulus in their environment. A behavior is a complex set of responses. Venus flytrap

What ways do we respond to stimuli What is stimuli? What is your response to stimuli when……. You are going to have a pop quiz right now?

Homeostasis and metabolism Living things take in energy and use it for maintenance and growth and to maintain homeostasis (the tendency of a cell or organism to maintain its internal environment) Metabolism is the sum of all the chemical reactions that take place in an organism.