1. Big Q: What characteristics do all living things share?
Studying Life
Big Q: What characteristics do all living things share?

2. Engage - Living thing or not?
List some ways in which all living things are alike.
Would you consider an icicle a living thing? How about a rock? A sea otter?

3. Explore - A guided Tour
Walk around to each station and determine if you think the items are living or non-living things. Provide evidence for your conclusion.
Station 1 - Ebola Virus
Station 2 - Zucchini
Station 3 - E. Coli Bacteria
Station 4 - Amoeba
Station 5 - Cork
Station 6 - Log
Station 7 - Platypus
Station 8 - Heart Cell
Station 9 - Wood Block
Station 10 - Paramecium

4. Explain - Biology Biology Biology - the study of life Bio = life

5. Explain - Genetic Code
All living things are based on a universal genetic code:
This information is:
1. Stored in organisms (as DNA)
2. Used for growth(1)
3. Used for reproduction(2)

6. Elaborate - Growth and Reproduction
Growth can occur by:
Cell Size (synthesis) - single celled organisms
Number of cells - multicellular organisms
Reproduction:
Asexual - one parent, identical offspring
Sexual - two parents, offspring not identical

7. Explain - Differentiation
Living things grow and develop:
Differentiation - cells replicate through mitosis and become specific tissue.
Synthesis (3) - chemical process where small molecules are combined to form large molecules

8. Explain - Stimulus and Response
Living things respond to their environment:
They do this through:
1. Regulation(4) - control of life activities
2. Nutrition (5) - obtaining and processing food
3. Respiration (6) - energy is released from food molecules
4. Transport (7) - absorption and circulation of materials
5. Excretion (8) - removal of liquid waste

9. Elaborate - regulation
Regulation in animals requires:
1. Nervous System - stimulus/response model
2. Endocrine System - hormones (chemical messages)
***Stimulus - nerves pick up information from the outside
***Response - the brain tells the body how to adjust to the change

10. Elaborate - Nutrition
Nutrition - provides the body with a source of energy
Can be done two ways:
1. Autotrophic - make their own food
2. Heterotrophic - cannot make their own food
Ingestion - take in food
Digestion - breaking down food
Egestion - removal of solid undigested food

11. Elaborate - Respiration
Respiration - food is ingested, broken down and used by the mitochondria to make energy
Two types:
1. Aerobic Respiration - uses oxygen to make energy
2. Anaerobic Respiration - makes energy without oxygen

12. Explain - Balanced Body
Living things maintain a stable internal environment
Living things obtain and use material and energy
Homeostasis - keeping a stable internal environment
Metabolism - chemical reactions that organisms use to build up or break down materials

13. Evaluate - What are the Life Processes
List all 8 life processes, and re-evaluate the items from the beginning of class. Now do you think they are living or non- living objects?
Nutrition
Excretion
Growth
Transport
Synthesis
Reproduction
Respiration
Regulation