1. Welcome to Biology Class What is Biology Anyways? Why do I need to know about Biology?

2. What is BIOLOGY? OLOGY= Study OLOGY= Study BIO = Life BIO = Life So Biology is the ……… So Biology is the ……… “STUDY OF LIFE” The science that employs the scientific method to study living things.

3. How do organisms get arranged in life? What would it take to be considered an organism? What would it take to be considered an organism? An orderly structure An orderly structure Be able to produce offspring Be able to produce offspring Ability to grow and develop Ability to grow and develop Adjust to changes in environment. Adjust to changes in environment.

4. Organisms interactions: Organism rely on each other and the environment for survival. Organism rely on each other and the environment for survival. They form a web of life or food chain. They form a web of life or food chain.  What is a web of life or food chain?

5. Web of life Organisms in an ecosystem can be grouped by the way they acquire & contribute food. Organisms in an ecosystem can be grouped by the way they acquire & contribute food.

7. Characteristics of Living/Non Living things. What are some characteristics of living things? Examples? What are characteristics of non living things?Examples?

8. Living = Organism Must have an orderly structure Must have an orderly structure Must be able to produce offspring Must be able to produce offspring Must be able to grow and develop Must be able to grow and develop Must adjust to changes in environment Must adjust to changes in environment

9. What are on non living things? Some non living things may have some of the criteria to be living BUT, they must show ALL OF THE REQUIREMENTS. Some non living things may have some of the criteria to be living BUT, they must show ALL OF THE REQUIREMENTS.  Example: an iPod- it has an orderly structure but non of the other criteria are met = non living

10. Lets go outside and see what we can find!!!!! I will put you in groups of 2. I will put you in groups of 2. You need to obtain a bag from the front table. You need to obtain a bag from the front table. You will then, (in an orderly fashion) go outside and collect 1 living and 1 non living things. You will then, (in an orderly fashion) go outside and collect 1 living and 1 non living things. When you have finished gather in a group near the outside door. When you have finished gather in a group near the outside door.

11. Characteristics of living things: What are they? Made up of cells Reproduce Universal genetic code Grow and develop Obtain and use energy Respond to their environment Maintain and stabilize their internal environment As a group, living things change over time

12. Organization or Organisms Organization = Structure Organization = Structure What gives something its structure? What gives something its structure?  One or more cells  Genetic make up =DNA

13. Organization continued…. If something is living it has a cellular organization. If something is living it has a cellular organization. They all need to function (work) together in an orderly, living system. They all need to function (work) together in an orderly, living system.

14. Levels of Organization Molecules Cells Groups of Cells Organism Population Community Ecosystem Biosphere

15. Reproduction: The producing of offspring The producing of offspring Why do we need to reproduce? Why do we need to reproduce?

16. What makes something a species?

17. Growth and Development Organisms have to grow and develop Organisms have to grow and develop Start with a single cell===Multiply==== Start with a single cell===Multiply==== Characteristics start to form Characteristics start to form Eventually, increase the amount of living material===== formation of a new structure Eventually, increase the amount of living material===== formation of a new structure

18. Growth can vary Organisms and different species grow at different rates. Organisms and different species grow at different rates. Look around you some have grown a lot some a little in a few years. Look around you some have grown a lot some a little in a few years.

19. Throughout history Organisms and the rate that they change has been a gradual change but….. Organisms and the rate that they change has been a gradual change but….. It is still going on Rule of thumb: more cells the more the change.

20. Adapt to the Environment Air, water, temperature, weather, … etc.. Air, water, temperature, weather, … etc.. Predators/prey… if a new organism comes in to town what is going to happen? Predators/prey… if a new organism comes in to town what is going to happen? Must have ability to respond to outside stimulus. Must have ability to respond to outside stimulus.

21. The key to be adaptive and a living thing. REQUIRES A STIMULUS.. SOMETHING ACTING ON IT. REQUIRES A STIMULUS.. SOMETHING ACTING ON IT. REQUIRES A REACTION OR RESPONSE. REQUIRES A REACTION OR RESPONSE.

22. Organisms reactions.. + or – depends on Health Most healthy environments run along a HOMEOSTASIS. Most healthy environments run along a HOMEOSTASIS.  Maintain internal conditions suitable for survival. Correct amount of food, water, temperature…. Etc Correct amount of food, water, temperature…. Etc All of the process in their lifetime depend on ENERGY USE. All of the process in their lifetime depend on ENERGY USE.

23. Adaptations: Evolution The organisms must adapt The organisms must adapt Biologist study the adaptations that cause a permanent change or the arrival of a new species Biologist study the adaptations that cause a permanent change or the arrival of a new species Known to be Evolution: the accumulation of gradual change through time!!! Known to be Evolution: the accumulation of gradual change through time!!!

24. Big Ideas in Biology Science is a way of knowing Science is a way of knowing Interdependence in Nature Interdependence in Nature Matter and Energy Matter and Energy Cellular Basis of Life Cellular Basis of Life Information and Heredity Information and Heredity Unity and Diversity of Life Unity and Diversity of Life Evolution Evolution Structure and Function Structure and Function Homeostasis Homeostasis Science Technology and Society Science Technology and Society