| 21. | The photic driving response elicited by a flash light in the visual cortex is also suppressed by nitrazepam.
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| 22. | The study also found statistically significant correlations between photic sneezing and the presence of a deviated nasal septum.
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| 23. | The surface zone contains ocean water that is in contact with the atmosphere and within the photic zone.
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| 24. | The stratum of the water column up till which sunlight penetrates is referred to as the photic zone.
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| 25. | The lower photic zone is high in nutrient concentration, low in light intensity and penetration and relatively cool.
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| 26. | Oceanic foams have also been suggested, using microscopic bubbles suspended in the upper layers of the photic zone.
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| 27. | Further studies have found that echolocation below the photic zone could have been a predation adaptation to diel migrating cephalopods.
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| 28. | They also lack symbiotic algae, generally living below the photic zone, and do not produce any strontium sulphate.
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| 29. | The different fauna that was present in the Eagle Ford suggests the waters were calm and within the photic zone.
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| 30. | Where phosphate is the limiting nutrient in the photic zone, addition of phosphate is expected to increase primary production.
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