What is Life?

All living things share 6 important characteristics:

1. Cellular Organization:Cells: The basic unit of structure and function in anorganism.

All living things share 6 important characteristics:

Unicellular: Having only one cell.

Multicellular: Having many cells.

All living things share 6 important characteristics:

2. Similar Chemicals:• The most abundant chemical

is water.• Carbohydrates, proteins,

lipids, nucleic acids.

All living things share 6 important characteristics:

3. Energy Use:• Cells are constantly hard at

work, growing and repairing.

All living things share 6 important characteristics:

4. Growth and Development:Development: the process of change that occurs in an organism’s life to become more complex.

acorn

large oak

seedling

All living things share 6 important characteristics:

5. Respond to Surroundings:Stimulus: A change in the organism’s surroundings that causes the organism to react.

Response: An action or change in behavior.

All living things share 6 important characteristics:

6. Reproduction:Reproduce: Produce offspring similar to the parents.

All living things need 4 basic things to stay alive:

1. Energy:Autotrophs: Organisms that can make their own food.

Example: ________________

All living things need 4 basic things to stay alive:

1. Energy:Heterotrophs: Organisms that cannot make their own food.

Example: ________________

All living things need 4 basic things to stay alive:

2. Water:• All living things need water to

survive.

All living things need 4 basic things to stay alive:

3. Living Space:• All organisms need a place to

live.

All living things need 4 basic things to stay alive:

4. Stable Internal Conditions:Homeostasis: Organisms must be able to keep the conditions in their bodies constant.

Example: ________________

Items you will need:•A sandwich bag•3 note cards•A label•A pencil

Note card Details:•Keep with you in science.•Have all cards in the bag.•Turn in on test day for extra credit.

Words to add today:• Unicellular• Multicellular• Autotroph

• Heterotroph• Homeostasis• Variable