1. Unit 1 Chapter 1.1

2.  Why it’s important?  Recognizing life’s characteristics and the methods used to study life provides a basis for understanding the living world.

3.  What do biologist study? *Interactions of the environment *Interactions of life *Problems and propose solutions The Characteristics of Living Things  All living things must Have an orderly structure Produce offspring Grow and develop Adjust to changes in the environment What is Biology Biology = the study of life Organism= anything that possesses all of the characteristics of life

4.  All living things are organized  Looking for structure shows that is there an organization going on  All living things make more living things  Reproduction is the production of offspring and the most obvious of all the characteristics.  Reproduction is not essential for survival of an individual organisms but essential for the continuation of the organism’s species  Species is a group of organisms that can interbreed and produce fertile offspring in nature.  If a species didn’t reproduce, what would happen? The Timeline of Life All living things change during their lives Beginning with a single cell, an organisms will grow. Growth results in an increase in the amount of living material and the formation of new structures. Also throughout time, all of the changes that take place during the life of an organism are known as its development All living things adjust to their surroundings Organisms live in a constant interface with their surroundings, or environment, which includes that air, water, weather, temperature, any other organisms in the area, and any other factors Anything in an organism’s external or internal environment that causes the organisms to react is a stimulus. A reaction to a stimulus is the response. For an organism's internal environment to maintain conditions to suit it’s survival is called homeostasis. Homeostasis is a process that occurs in all living things which allows them to use internal feedback to respond to internal changes. Energy is the ability to cause change and organisms get energy from food. All living things adapt and evolve Adaptations are inherited from previous generations. Any inherited structure, behavior, or internal process that enables an organism to respond to environmental factors and live to produce offspring is adaptation. Gradual change in a species through adaptations over time is evolution. These are clues to present diversity.

5. Chapter 1.1 Assignment 1.Why is it important to study biology? 2.Why is energy required for living things? How do living things obtain energy? 3.Describe how energy and homeostasis are related in living organisms.