Biotic and Abiotic Review
What is an abotic factor?
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What is a biotic factor?
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Put a capital A next to each ABIOTIC example and a B next to every BIOTIC example.
_____. Whale
_____. Wooden Ruler _____. Salad
_____. Wool
_____. Clock
_____. Sand
_____. Bread
_____. Gold
_____. Water
_____. Clouds
_____. Plant
_____. Plastic
_____. Fish
_____. Corpse
_____. Hair
_____. Grapes
_____. Paper
_____. Snail
_____. Finger Nails
_____. Air
_____. Glass
_____. Steak
_____. Pipe
_____. Cotton T-shirt
_____. Aluminum
_____. Pork Chops
List the abiotic and the biotic factors in the image to the right.
Biotic Factors
Abiotic Factors
1. ______________________________
1. ___________________________________
2. ______________________________
2. ___________________________________
3. ______________________________
3. ___________________________________
4. ______________________________
4. ___________________________________
5. ______________________________
5.___________________________________
Living things depend upon an ecosystem for food, air, and water, as well as other
things they need for survival. In turn, living things have an impact on the ecosystem in
which they live. Plants, as a biotic factor in land ecosystems, affect other biotic and
abiotic parts of ecosystems. Plants are an important source of food. The types of plants
found in a particular ecosystem will determine the types of animals that can live there.
Plants can affect temperature by blocking sunlight. Plant roots hold soil in place. Even
the atmosphere is affected by plants taking in carbon dioxide and releasing oxygen.
Animals, as biotic factors, also affect an ecosystem. A beaver that builds a dam
changes the flow of a river and so affects the surrounding landscape. Large herds of
cattle can overgraze a grassland ecosystem and cause the soil to erode. In an ocean
biome, corals form giant reefs that provide shelter for marine organisms.
Word
Definition
Biotic Factors
Illustration
Examples
Abiotic factors include the temperature of the amount of water or sunlight. Other
important abiotic factors include the minerals and compounds found in the soil and
whether the ecosystem’s water is fresh or salty. It is the combination of different abiotic
factors that determines the types of organisms that an ecosystem will support.
Word
Definition
Abiotic Factors
Illustration
Examples
Biotic Factors:
Abiotic Factors
1. ____________________________
1. _________________________
2. ____________________________
2. ____________________________
3. ____________________________
3. ____________________________
4. ____________________________
4. ____________________________
Temperature: _____________________________________
Amount of sunlight: ________________________________
Amount of water: __________________________________
How do the biotic and abiotic factors interact?
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