Classifying Our Environment Living vs Nonliving 2019.notebook

[Pages:3]Classifying Our Environment Living vs Nonliving 2019.notebook

Classifying Our Environment

Living, Dead or Nonliving

Vocabulary

Living anything that meets all 9 characteristics of life. Independent living things are called organisms.

Nonliving something that was never alive or will never be alive it does NOT meet all 9 characteristics of life.

Dead was once alive no longer meets all 9 characteristics of life.

Stimulus anything in the environment that causes an organism to react. ( Object, weather, water, air, light, sound, temperature/heat)

9 Characteristics of Living Organisms

1. Cells

? Cells are the basic units of life. An organism can be as small as one cell (bacteria) or be made up of trillions of cells (elephant).

2. Movement

? The ability of an organism to move, bend, sway, or relocate.

Plants bend towards the Sun.

Eagles fly.

3. Reproduction

? The ability of an organism to make more of its species.

Cats have kittens.

Plants spread seeds.

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Classifying Our Environment Living vs Nonliving 2019.notebook

4. Growth

? Biological growth (icebergs can get bigger but are not living). ? The ability of an organism to increase in size (increases the amount of cells it has) through cell division.

Tall trees grow from tiny seeds.

5. Respond

? The ability of an organism to react to stimuli from its environment.

changes in color, intensity and direction of light

changes in temperature, pressure, or sound

changes in the composition of the surrounding soil, air, or water.

6. Excretion

? The ability of an organism to get rid of "wastes".

? Waste can be gases, liquids, or solids.

? Examples: humans get rid of urine (pee), feces (poop) and carbon dioxide gas (CO2). Plants get rid of water (H2O) and oxygen gas (O2). ? Organisms must get rid of their waste to survive.

7. Exchange (Breathing)

? Animals breathe in oxygen (O2) and breath out carbon dioxide (CO2).

? Plants breathe in that carbon dioxide (CO2) and breathe out oxygen (O2) which we use. ? So..."exchanging" gasses with other organisms.

8. Nutrition

? The ability of an organism to take food/nutrients and turn them into energy which are needed to run their systems.

9. Life Span

? Living organisms do not live forever.

? All organisms have a specific life span, which means on average, how long it will live.

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