Crossword-Solution: HELIOTROPISM
Dictionary
| Word | Word Type | Definition |
|---|---|---|
| Heliotropism | n. | The phenomenon of turning toward the light, seen in many leaves and flowers. |
We have 1 clue for the answer “HELIOTROPISM”
| Clue | Answers |
|---|---|
| the movement of plants towards sunlight | 1 answer |
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Hint 1 meaning
To boil with a continued bubbling or heaving and
rolling, with noise.
Hint 2 anagram
ALPWOL
Hint 3 another clue
BATTER ___
8 +1
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Sentences with HELIOTROPISM (5)
This heliotropism lasts about half an hour (probably until all the carbon-dioxide has again diffused into the air.) Similar results may be obtained with any other acid.
These periodic motions are determined to a large extent, if not exclusively, by the heliotropism of these animals.
Since the consumption of carbon-dioxide by the green plants ceases towards evening, the tension of this gas in the water must rise and this must have the effect of inducing positive heliotropism or increasing its intensity.
When, in the morning, the absorption of carbon-dioxide by the green algae begins again and the temperature of the water rises, the animals lose their positive heliotropism, and slowly sink down or become negatively heliotropic and migrate actively downwards.
The character which is transmitted in this case is not the tendency to migrate periodically upwards and downwards, but the positive heliotropism.