1. 1.2 The world of biology pp.11-13
List 6 things that all cellular organisms have in common. (Hint, if they are cellular what are they made of?) IN

2. 1.2 The world of biology pp.11-13
NOTES
All life shares these 6 characteristics
1. cells
All living things are composed of cells
Can be unicellular or multicellular
Contain DNA
Questions go here…

3. 1.2 The world of biology pp.11-13
2. Organization
All life is organized
Things tend to get disorganized
Life organizes things
*DNA contains instructions for this organization

4. 1.2 The world of biology pp.11-13
3. Energy
All life uses energy
Metabolism = sum of the energy use in an organism
Within an organism the energy is transferred by chemical reactions

5. 1.2 The world of biology pp.11-13
4. Homeostasis
Homo = same
Stasis = static, stay, don’t move
Controlled by hormones→genes→DNA
Organisms try to keep this stable
Body temperature
Food
Water content

6. 1.2 The world of biology pp.11-13
5. Growth
In numbers
Cells divide (copy DNA)
Offspring
In size
In complexity
Sperm cell and egg cell become a person

7. 1.2 The world of biology pp.11-13
6. Reproduction
Sexual = male & female
Sperm and egg (combine DNA)
Animals
Many plants
Asexual = without sex
Cell divides into identical copy
Bacteria
Spore formation (like seeds)
Fungi, gymnosperm plants

8. 1.2 The world of biology pp.11-13
Grow Reproduce Organized Use energy Cells Homeostasis
What are the 6 things all living things do?
You can use this acronym to answer #1 for the homework:
OUT: 1.2 Review p.13 answer 1-6