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Biotic and Abiotic Factors
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Biotic and Abiotic Factors
📚 Part 1: Multiple Choice (Choose one)
1. Which statement best describes an ecosystem?
A community of living organisms only
All the living organisms and the physical conditions in an area
The weather patterns over a year
A single species living in isolation
2. Which of the following is a biotic factor?
Soil pH
Temperature (°C)
Bacteria in the soil
Sunlight intensity
3. Which example shows interdependence in an ecosystem?
Rocks breaking down into smaller pieces
Bees pollinating flowers while collecting nectar
Wind changing direction
Rain freezing to ice
4. A pond’s average winter temperature rises by 2–3°C. Which is the most likely immediate abiotic change?
Increase in predators
Reduced amount of dissolved oxygen in the water
More plant-eating insects
Growth of new tree species on the shore
5. Check all that are abiotic factors:
Light intensity
Fungi
Soil mineral content
Temperature
✏️ Part 2: Short Answers & Matching
6. List three biotic and three abiotic factors you might find in a local park (separate lists):
7. Match each item on the left to the correct category on the right. Draw a line between matching items.
A. Grass
B. pH of pond water
C. Fox
D. Temperature
E. Fungi
1. Abiotic
2. Biotic
3. Biotic
4. Abiotic
5. Biotic
8. Predictive question: If rainfall in your area decreased by 30% for one year, briefly suggest two possible effects on the local ecosystem.
9. Exit ticket (one sentence each):
a) One new thing I learned today: ____________
b) One question I still have: ____________
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