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- 1. Multiple Choice
A tropism is...
a change in the environment
plant movement in response to a stimulus
something that causes a response
when photosynthesis takes place
- 2. Multiple Choice
What is the stimulus in this example?
Internal
Light
Touch
Temperature
- 3. Multiple Choice
Roots of a tree growing towards the water line of a house.
Geotropism
Phototropism
Thigmotropism
Hydrotropism
- 4. Multiple Choice
The shoot of a plant growing up.
Positive geotropism
Negative geotropism
Thigmotropism
Hydrotropism
- 5. Multiple Choice
The root of a plant growing down.
Positive geotropism
Negative geotropism
Thigmotropism
Hydrotropism
- 6. Multiple Choice
A plant growing in response to a greenhouse light.
Geotropism
Phototropism
Thigmotropism
Hydrotropism
- 7. Multiple Choice
Venus Flytrap flower reacts to a bug.
Thermotropism
Negative Geotropism
Thigmotropism
Hydrotropism
- 8. Multiple Choice
Rhododendron leaves close in cold weather.
Heliotropism
Thigmotropism
Phototropism
Thermotropism
- 9. Multiple Choice
Sunflowers turning towards the sun.
Hydrotropism
Phototropism
Thigmotropism
Geotropism
- 10. Multiple Choice
What makes a tropism positive or negative?
Positive = movement towards stimulus, Negative = movement away from stimulus
Negative = movement towards stimulus, Positive = movement away from stimulus
Who cares? It doesn't matter whether it is positive or negative
Positive = when a plant is happy, Negative = when a plant is sad
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