How to use photic in a sentence

Looking for sentences and phrases with the word photic? Here are some examples.

Sentence Examples Stromatolites were built by photosynthesizing organisms occupying shallow-water environments within the photic zone. The implications of this work on thought about evolution of photic behavior in fireflies are considered. They are therefore true deep-brain photoreceptors that bypass the eyes as a pathway for photic information. Furthermore, extraretinal photoreceptors appear to be involved in the photic entrainment of the circadian clock. The depth is recognized as that of the lower photic zone, the reproductive depth for planktonic foraminifera. Seasonal highs that pushed this euxinic layer into the photic zone would then lead to the greatly increased preservation and the TOC maxima. The authors skimmed their bacteria samples from the top, or photic layer, of the Mediterranean and Red Seas. Twilight Zone: The area of the ocean below the sunlit photic zone and above the zone of total darkness. The illuminated region above it is called the photic zone, within which are distinguished the euphotic and disphotic zones. On many sediments in the photic zone, however, the only photosynthetic organisms are microscopic benthic diatoms. Single-celled or multicelled plankton with photosynthetic pigments are the producers of the photic zone in the pelagic environment. Concentrations of phosphorus and nitrogen are generally low in the photic zone because they are rapidly taken up by marine organisms. Figure 5 illustrates changes in values in the photic zone of Robert-Bourassa, Opinaca and Caniapiscau reservoirs during the ice-free season. The bottommost, or aphotic, zone is the region of perpetual darkness that lies beneath the photic zone and includes most of the ocean waters. Many  experts agree on this theory, because photic sneeze reflex seems to affect members of the same family. In contrast, the many shale layers seem to be poor in macrofossils largely because they were deposited at depth below the photic zone as indicated by benthic foraminifera. The high nutrient concentrations generally found in deeper waters are advected upward into the photic layer where photosynthesis is promoted. To characterize this photic entrainment we examined frq expression in constant light, under which condition the mRNA and protein of this clock gene were strongly induced. Exhibiting uncharacteristic panache, John used this result to question Jacques Loeb's then popular theory of photic orientation in insects, which required paired eyes. The relatively moderate brachiopod generic diversity is consistent with a moderately restrictive environment, including one below the photic zone. Show More Sentences Macroalgae benefit from this relationship because fertile drift plants are retained in the photic zone where they continue to contribute to the gene pool. They are capable of photosynthesis and can only be found in the photic or sunlit part of the ocean. The intertidal zone and the photic zone in the oceans are relatively familiar habitats. Maerl beds occur in the photic zone, and can be found to around 30 m depth in the British Isles and up to 120 m deep in the Mediterranean. Extending from the bottom of the photic zone down to the seabed is the aphotic zone, a region of perpetual darkness. However, due to its capacity for photosynthesis, the photic zone has the greatest biodiversity and biomass of all oceanic zones. It is also referred to as the surface waters or the sunlit zone, and includes the photic zone. Life forms which inhabit the aphotic zone are often capable of movement upwards through the water column into the photic zone for feeding. The maxima of the identified intracerebral sources during prickling sensation in photic sneezers are located in the lateral parts of the somatosensory cortex close to the somatotopic representation of the nose. According to the generic knowledge on the underwater light level, the sea area was divided into photic and aphotic zones. Animals and decomposers are found in both the photic and aphotic zones. Secchi disk readings were also taken to ensure that the mesocosm depths were consistently in the photic zone. Intermittent photic stimulation using a strobe light is an activator of spike wave or polyspike wave discharges that tend to occur more typically in certain genetic forms of epilepsy or myoclonic epilepsy. The limestones of the Central Baltoscandian confacies belt are shallow-water deposits formed within the photic zone. The condition of this environment is shallow, with medium to low energy and presence in the photic zone below the fair-weather wave base. Those studies have pinpointed that injection of deep nutrients into the photic layers is strongly affected by data assimilation, with too strong advection in and north of the subtropical gyre. Here we report on the use of imaging flow cytometry to analyze vertical profiles through the photic zone. The behaviour of Kogiids remains largely unknown, but, due to their small lungs, they are thought to hunt in the photic zone. When lightly touched most of the responsive males lit both photic organs, though others glowed only from one of both. Taylor already had a SID that could go deeper than the photic zone to study metabolic processes of bacteria there. Show More Sentences The thicknesses of the photic and euphotic zones vary with the intensity of sunlight as a function of season and latitude and with the degree of water turbidity. For example, some types of plankton, fish, and squid remain beneath the photic zone during the day, moving toward the surface after dusk and returning to the depths before dawn. The cold lower photic layers have shown to be high in plant productivity despite lower levels of light, probably because cold water contains more nutrients. Are you affected by the photic sneeze reflex? As in Study I, the history of several children with a negative test indicated that they were nightblind only after experiencing a photic stress. Zones which vary by the amount of light they receive include the photic and aphotic zones. Day length and insolation intensity also controls the extent of the photic zone. The surface zone contains ocean water that is in contact with the atmosphere and within the photic zone. In addition, a stronger prickling sensation in the nose of photic sneezers was found to be associated with activation in the insula and stronger activation in the secondary somatosensory cortex. Its origin lies in activities within the productive photic zone. The photic zone has sufficient light for phytoplankton to photosynthese. A characterization of the fish assemblage of deep photic zone rock outcrops in the Anacapa Passage, Southern California, 1995 to 2004, with evidence of a regime shift. The pelagic part of the photic zone is known as the epipelagic. In marine biology, the sublittoral refers to the areas where sunlight reaches the ocean floor, that is, where the water is never so deep as to take it out of the photic zone. The photic zone can be subdivided into two different vertical regions. More common techniques used to provoke all patients with seizures include hyperventilation, photic stimulation, sleep deprivation, and AED withdrawal. The photic zone extends to approximately the base of the wall. These species of fish tend to stay below the photic zone usually at depths greater than 300 m during the day and migrate up near the surface at night. Examples from Classical Literature In these cases the photic stimulus produces partly chemical and partly mechanical changes. The screen was set up as it had been in the other building, and everything was made ready for the operations of the photic borer. The latent period of photic reaction is shortened with the increasing intensity of light. I shall describe a device which gives a continuous record of photic variation for the whole day. The after-effects of photic and mechanical stimulation are similar. Find more words! 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Words that rhyme with photic Use our Sentence Generator Nearby Words phot phosphotyrosine phosphorylation phosphorylated phosphoryl phosphorus cycle photic zone photinia photo photoactive photoactivity photoautotroph 6-letter Words Starting With p ph pho phot photi