PDF Characteristics of Living Things Notes.notebook
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Characterisitics
of Living Things!
What makes something living and nonliving?
PDF Characteristics of Living Things Notes.notebook
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All living things no matter how different from each other they may be share a set of common
characteristics.
PDF Characteristics of Living Things Notes.notebook
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All Living organisms have the same 5 characteristics and 3 needs.
This helps scientists classify things as living or nonliving.
Does it eat? Does it grow?
Does it move?
Does it interact?
Does it
reproduce?
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1. Characteristics of Living Things
• Living things are organized and made of cells
– cells: smallest unit of living matter
> can be singlecelled (1 very simple and selfsufficient cell)
> can be multicelled (many different cells have different functions)
– example: blood cells, brain cells, skin cells,muscle cells, etc.
PDF Characteristics of Living Things Notes.notebook
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multicelled vs. single celled
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2. Characteristics of Living Things
• Living things respond to stimuli
> Stimulus: any change in an organism's surroundings that will cause the organism to react.
– Ex: change in light, background, temperature, space, water, food, or other organism
> Response: an organism's reaction to stimulus.
– Ex: running away, color change, hiding in shell, growing thicker fur
Stimulus comes first and response comes second
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What's the stimulus and what is the response?
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3. Characteristics of Living Things
• Living things obtain and use energy
> Energy comes from food, oxygen, and water
> Helps living things grow and develop
– Autotrophs: (plants) make their own food
– Heterotrops: (animals) get food from other plants and animals
« Respiration: process where energy is released from food in most organisms
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4. Characteristics of Living Things
• Living things grow and develop
> Growth: process where organism becomes larger
– Ex: Getting taller
> Development: organisms become more complex
– Ex: Getting smarter
**Organism must have energy to grow and develop
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5. Characteristics of Living Things • Living things reproduce
> Reproduce: make offspring that have similar characteristics as the parents.
• 2 types: Sexual vs. Asexual
• Sexual: 2 parents (sperm and egg) combination of both parents traits
• Asexual: 1 parent identical offspring to parent
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WHAT DO LIVING THINGS NEED?
1. Shelter
2. Water
3. Food
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Scientists have categorized all living things into 5 kingdoms based on these characteristics.
Plants
Animals
Fungi
Protists 1 cell Bacteria/Monera 1 cell
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Is it a living organism?
1. Is it made of cells?
2. Does it respond to stimuli?
4. Does it grow and develop?
5. Does it reproduce?
3. Does it use energy?
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http://studyjams.scholastic.com/studyjams/jams/science/plants/kingdomsoflife.htm
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Is it living? Water Venus Flytrap Caterpillar Volcano Tick
Cells?
Responses?
Grow and Develop?
Reproduce? Need
energy/food?
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__________ Kingdom