1. Characteristics of Living Things
Chap 1-3
Pg 16-19

2. 1. Living things are made up of units called cells
A. ORGANISMS can be either:
Multicellular- made of many cells.
Ex: animals, plants
2. Unicellular- organism made of one cell.
Ex: amoeba or bacteria

3. 2. Living things reproduce
Two kinds of reproduction:
What are they and how are they different?
1. Sexual Reproduction- cells from two different parents unite to form a new organism. Offspring are genetic combination of both parents.
2. Asexual Reproduction- the new organism comes from a single parent. Offspring genetically identical to parent.

4. 3. Living things are based on a universal genetic code
The directions for inheritance are carried by a molecule called
Deoxyribonucleic Acid (DNA)
B. DNA codes the traits on the chromosomes that you inherit. Ex: eyesight, diabetes, height

5. 4. Living things grow and develop
Grow – Cells and Unicellular organisms may increase in size.
B. Develop - The cells of multicellular organisms begin to divide and differentiate or specialize creating specific types of cells with specific functions.
List 6 different types of cells in your body
Ex. Muscle cells, liver cells, Red blood cells, skin cells.

6. Differentiate/Specialize goes with which characteristic?
A. Have cells
B. Universal genetic code
C. Reproduce
D. Grow and develop

7. DNA goes with which characteristic?
A. Have cells
B. Universal genetic code
C. Reproduce
D. Grow and develop

8. Deoxyribonucleic goes with which characteristic?
A. Have cells
B. Grow and develop
C. Universal genetic code
D. Reproduce

9. Asexual and sexual go with with characteristic?
A. Have cells
B. Universal genetic code
C. Reproduce
D. Grow and develop

10. Stand up and Mix Pair Share
Take turns listing the first 4 characteristics of life.
Tallest person begin

11. 5. Living things obtain and use materials and energy
Metabolism- the combination of chemical reactions through which an organism builds up or breaks down materials to carry out its life processes.
Examples of types of metabolism:
1. Photosynthesis- BUILD UP (plants)
2. Cellular respiration- BREAK DOWN (plants and animals)

12. 6. Living things respond to their environment
a stimulus is a signal to which an
organism responds.
B. Stimuli can be:
1. internal (stomach growling, dry mouth)
2. external (light, sound, heat)
Ex. Internal: Dizzy due to low blood sugareat
External:Temperature drops  birds fly south

13. 7. Living things maintain a stable internal environment
Homeostasis- the process in which an organism’s internal conditions stay fairly constant in order to survive; means “same condition”
Ex: body temperature
blood sugar
Heart rate…

14. Respond vs. Internal balance
You are dizzy because of low blood sugar:
Your RESPONSE is to eat.
The REASON is to maintain INTERNAL BALANCE

15. 8. Taken as a group, living things CHANGE OVER TIME
Evolution- A population of organisms
changes over time through adaptations OVER GENERATIONS in order to survive

16. Metabolism goes with which characteristic?
A. Genetic Code
B. Internal balance
C. Obtain and use materials and energy
D. Change over time

17. Stimulus goes with which characteristic?
A. Respond
B. Internal balance
C. Obtain and use materials and energy
D. Grow and develop

18. Photosynthesis goes with which characteristic?
A. Respond
B. Internal balance
C. Obtain and use materials and energy
D. Change over time

19. Evolution goes with which characteristic?
A. Obtain and use materials and energy
B. Grow and develop
C. Change over time
D. Respond

20. Homeostasis goes with which characteristic?
A. Obtain and use materials and energy
B. Internal balance
C. Change over time
D. Respond

21. Amoeba Sisters Video

22. Rally Robin with your shoulder partner:
List all 8 characteristics of living things:
B’s start

24. 9 Levels of Organization
1.Molecules
2. Cells (ex. ?)
3. Groups of Cells
4. Organism (ex. ?)
5. Population (ex. ?)
6. Community-Populations that live in a defined area.
7. Ecosystem- Community and its NONLIVING surroundings.
8. Biome (ex.?)
9. Biosphere-Part of earth that contains all biomes/ecosystems
BIOME