Six Characteristics of Living Things
1. Have one or more cells2. Have DNA3. It grows and develops4. Has energy5. It reproduces6. It responds to stimulus
HINT: One C Two D’s One E Two R’s
stimulus
When a duck dives under water, its inner eyelids automatically raise to cover the duck’s eyes.
What is this called?
Organisms need food because…
• It’s a source of energy• It supplies cells with oxygen• Organisms never make their own
food
• ALL OF THE ABOVE
homeostasis
Maintaining a body temperature of 37 degrees C and a stable amount
of sugar in your blood are both example of ….?
cheetah paramecium
1. Which reproduces sexually?2. Which reproduces asexually?3. Which one has DNA in it cells?
asexual reproduction
Sexual reproduction
DNA
Organism’s Living Spaces• Some organisms need small living spaces.
• Some organisms need LARGE living spaces.
Some organisms compete with each over for living space.
Cells are…
1.The structures that contain all of the materials necessary for life.
2.Found in all organisms
3.Generally too small to be seen with the naked eye.
ALL OF THE ABOVE
Green plants, algae, and some bacteria need ___________ to
produce food by photosynthesis.• A. Oxygen
• B. Carbon Dioxide
• C. Nitrogen
CARBON DIOXIDE
Air is composed of …
1. Only oxygen
2. Only of carbon dioxide
3. A mixture of gases
4. Only nitrogen
DIFFERENT GASES
How do you know that a tree is a living thing?
1. It has cells2. It has DNA3. It grows and develops4. It has energy5. It makes leaves and reproduces6. It responds to stimuli (cold)