All living things share several key characteristics: 1. Organization - made of cells, tissues, organs, organ systems. 2. Growth and development - change over time as they grow. 3. Response to stimuli - react to internal and external changes. 4. Use of energy - require energy to carry out life processes. 5. Homeostasis - maintain stable internal conditions. 6. Reproduction - ability to produce new individuals of their kind.

1. Ch. 1.1 Living Things
Focus Question:
1. What characteristics do all living things
share? (6 tab foldable in your notebook)
• Refer to pg. 15 in your book
• Write the characteristic on the outside of
the tab
• Write the description on the inside of the
tab
• When finished, start reading Ch. 1.1 (starts
on pg. 9)

2. Add the examples from the
following slides to your foldable

3. Organization
Organism
Organ System
Organ
Tissue
Cell
5 Levels of Organization

4. Growth & Development

5. Reproduction
• Cells splitting
• Bird laying eggs

6. Response to Stimuli
• Internal Stimuli: feeling hungry or thristy
• External Stimuli: sun burn, shivering

7. Homeostasis
• Sweating to prevent overheating
• Getting rid of excess fluids

8. Use of energy
• Sun plants animals predators decomposers
• Some don’t need sunlight for energy (deep in ocean)

9. Remotes questions

10. What term refers to things that have all
the characteristics of life?
a. cells
b. unicellular organisms
c. organisms
d. multicellular organisms

11. Which of these refers to changes in an
organism’s environment?
a. External stimuli
b. Homeostasis
c. Internal stimuli
d. Development

12. Homeostasis refers to an organism’s ability
to maintain stable ______ conditions?
a. External
b. Internal
c. Cellular
d. Environmental

13. Which characteristic of life does this example
refer to:
mosquito larvae changing into an adult
mosquito?
a. Growth & development
b. Organization
c. Reproduction
d. Homeostasis

14. Which characteristic of life does this
example refer to:
a bacterium dividing into 2 bacteria?
a. Growth & development
b. Organization
c. Reproduction
d. Energy

15. Which characteristic of life does this
example refer to:
eating because you feel hungry?
a. Response to stimuli
b. Organization
c. Reproduction
d. Homeostasis

16. Which characteristic of life does this example
refer to:
your body temperature staying the same?
a. Energy
b. Response to stimuli
c. Reproduction
d. Homeostasis

17. Which characteristic of life does this
example refer to:
what you need for doing all activities?
a. Growth & development
b. Energy
c. Reproduction
d. Homeostasis

18. Which characteristic of life does this example
refer to:
groups of cells working together as a tissue?
a. Growth & development
b. Organization
c. Response to stimuli
d. Homeostasis

19. What kind of organism is a human?
a. Single-celled organism
b. Multicellular organism

20. Which of the following is NOT an example of
maintaining homeostasis?
a. Sweating when hot
b. Getting a fever when sick
c. Eating when your stomach growls
d. Eyes dilating when in the dark