cell

1. Characteristics
of Life

2. Living Things
• Example 1
• Example 2
• Example 3
• Example 4

3. Examples

4. Nonliving Things
• Example 1
• Example 2
• Example 3
• Example 4

5. Characteristics of Life

6. Characteristics of Life
• 1- All living things are organized.
• 2- They grow and develop.
• 3- They respond to their environment.
• 4- All living things maintain certain internal
conditions.
• 5- They use energy.

8. Organism
• Things that have all the
characteristics of life are called
ORGANISMS.

9. EXAMPLES

11. Organization.

12. Cell
• A cell is the smallest unit of life.

14. Unicellular Organisms
• Living things that are made of only one cell
are called UNICELLULAR organisms.

16. Multicellular Organisms
• Living things that are made of two or more
cells are called MULTICELLULAR organisms.

17. Growth and Development

20. How do organisms grow?
•  increases in size
•  cell gets bigger
•  More cells are produced

21. How do organisms develop?
• Cells become specialized into different types
• (skin and muscle cells)

22. Reproduction
•Reproduction is the
process by which one
organism makes one or
more new organisms.

23. Reproduction
• Organisms reproduce many ways.
• Some unicellular organisms divide and become
two new organisms.
• Some organisms must have a mate to reproduce.
• Other organisms can produce without mate.

25. Homeostasis
• An organism’s ability to
maintain steady internal
conditions when outside
conditions change is called
homeostasis.