1. DO NOW!!!

2. Introduction to Living Things
Unit 1 Lesson 1

3. What characteristics do living things share?
Living things may seem very different – they are alike in several ways.
Share

4. The 7 Characteristics
With a group investigate the 7 characteristics that you believe all living organisms share.
Think about:
What they are made of?
What they do to survive?
How do they interact with their environment?

5. 7 Characteristics Living things: are made of cells
respond to their environment
maintain a stable internal environment (homeostasis)
reproduce
obtain and use energy
grow and develop
adapt to their environment

6. Make a story Book
Create a story book with the 7 characteristics of living things!

7. HW
Read Through Unit 1 Lesson 1 and underline all the important information!

8. 7 Characteristics that all living things share!
are made of cells
respond to their environment
maintain a stable internal environment (homeostasis)
reproduce
obtain and use energy
grow and develop
adapt to their environment

9. Cell - smallest structural and functional unit of life.
All living things -made of one or more cells!
Cell – membrane covered structure - contains all of the materials necessary for life.
Microscopic

10. Cell membrane - boundary between the inside of the cell and environment outside.

11. Living things are made of cells!
Unicellular organisms - only one cell. (Prokaryotes = Bacteria)
Multicellular organisms - more than one cell. (Eukaryote = Animals & Plants)
Multicellular organisms - trillions of cells that perform specialized functions.
Cells  Tissues  Organs  Organ Systems  Organism

13. Living things respond to their environment.
Ability to sense & respond to change in environment
Stimulus - change that affects the activity of an organism
Examples – Hunger, Tiredness, Fear, Light, Chemicals, Sounds, etc.

14. Living things maintain a stabile internal environment (homeostasis).
Chemical reactions - keep an organism alive and can happen only when conditions are exactly right.

16. Living things reproduce.
Reproduction – creation of new organisms
Parents pass on traits through copied DNA to offspring
DNA (deoxyribonucleic acid) - genetic material that controls the structure and function of cells.
Sexual or asexual

17. DNA Offspring have similar traits and characteristics of parents
Received DNA (23 chromosomes from each parent)

18. Life reproduces.

19. Homework
Read pages 6 – 8 and answer questions #5 – 9.

20. DO NOW!!!
With a partner discuss how a living thing might adapt to their environment! Think of a specific animal and their adaptation!
Example: A chameleon will camouflage itself to its surrounds to avoid being found and eater by predators.

21. Sexual Reproduction
2 parents - produce offspring that share the characteristics of both parents
Offspring - receives part of its DNA from each parent.
Animals and plants

22. Asexual Reproduction Binary Fission
1 parent - produces offspring that are identical to the parent
Offspring - receives an exact copy of the parent’s DNA.
Most unicellular organisms, some plants and animals
Binary Fission

23. Budding
New organism grows on parent until it separates.

24. break down food
move materials in and out of cells
move and interact

25. Obtain & Use Energy
Producers – Plants make their own food – Photosynthesis – energy from sun - Autotrophs
Consumers - eat other organisms to gain energy -Plants or animals – Heterotrophs
Decomposers - break down decaying material to gain energy

28. Unicellular - gets larger, divides, and forms two new cells
Multicellular - # of cells in body increases - organism gets bigger.

30. Living Things Adapt to their Environment
Traits – give an organism an advantage in a certain environment
As environment changes – organism must change in order to survive

31. Discussion

33. Homework
Complete Questions 10 through 14 on Pages 9 through 11.

34. DO NOW!!!
Complete the Visual Summary on Page 12 in your textbook.

36. Survival Needs: Water Essential for life.
Cells - mostly made of water, and most chemical reactions in cells require water.

37. Survival Needs: Gases
Air – Oxygen, Nitrogen, Hydrogen, etc. – Needed to survive
Cells - use oxygen in air to release energy from food (Glucose).
Plants - use the carbon dioxide in air to make food.

38. Food & Shelter
Food - energy and nutrients - carbohydrates, lipids, and proteins. Examples of food that has these?
Shelter - protects from harm and contains the other necessities of life.

40. Producers – Consumers
Producers (plants and algae) – create their own food – Photosynthesis - Autotrophs
Consumers - eat other organisms for food - Heterotroph

41. Decomposers
Decomposers - break down dead organisms or wastes to get food
Return nutrients to soil

42. Activity Taking a closer look at decomposers.
Observe an earth worm and make calculated observations.

43. Earthworm Questions How many hearts does an earth worm have?
If you cut an earth worm in half do both sides live?
Do earthworms give birth to live young?
Do earthworms have lungs?
Why are earthworms important for the earth?

44. Earthworms

45. South African Earthworm
Largest earthworm every found was in south Africa. It was 22 feet long (6.7 meters long).

46. Homework
Complete the Unit 1 Lesson 1 Review on Page 13