Characteristics of Life

Living Things

• Example 1

• Example 2

• Example 3

• Example 4

Examples

Nonliving Things

• Example 1

• Example 2

• Example 3

• Example 4

Characteristics of Life

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.

Organism • Things that have all the

characteristics of life are called ORGANISMS.

EXAMPLES

Organization.

Cell

• A cell is the smallest unit of life.

Unicellular Organisms

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

Multicellular Organisms

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

Growth and Development

How do organisms grow?

• increases in size

• cell gets bigger

• More cells are produced

How do organisms develop?

• Cells become specialized into different types • (skin and muscle cells)

Reproduction

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

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.

Homeostasis •An organism’s ability to

maintain steady internal conditions when outside conditions change is called homeostasis.