The photic zone, euphotic zone, epipelagic zone, or sunlight zone is the uppermost layer of a body of water that receives sunlight, allowing phytoplankton to perform photosynthesis. It undergoes a series of physical, chemical, and biological processes that supply nutrients into the upper water column. The photic … See more In the photic zone, the photosynthesis rate exceeds the respiration rate. This is due to the abundant solar energy which is used as an energy source for photosynthesis by primary producers such as phytoplankton. These See more Due to biological uptake, the photic zone has relatively low levels of nutrient concentrations. As a result, phytoplankton doesn't receive … See more Most of the solar energy reaching the Earth is in the range of visible light, with wavelengths between about 400-700 nm. Each colour of visible light has a unique wavelength, and … See more • Mesophotic coral reef • Electromagnetic absorption by water • Epipelagic fish See more Ninety percent of marine life lives in the photic zone, which is approximately two hundred meters deep. This includes phytoplankton (plants), including dinoflagellates, diatoms, cyanobacteria, coccolithophores, and cryptomonads. It also includes See more The depth is, by definition, where radiation is degraded down to 1% of its surface strength. Accordingly, its thickness depends on the … See more Phytoplankton are unicellular microorganisms which form the base of the ocean food chains. They are dominated by See more Webc. the photic zone, the abyssal zone, the neritic zone, and the oceanic zone. d. the pelagic realm, the aphotic zone, the neritic zone, and the oceanic zone. c. Photosynthetic organisms would be found in the photic, abyssal, neritic, and oceanic zones. Which of the following is a biotic factor? a. wind. b. disease-causing microbe. c. temperature.
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Webadj 1. (Biology) characterized by or growing in the absence of light: an aphotic plant. 2. (Physical Geography) of or relating to the zone of an ocean below that to which sunlight can penetrate, usually about 90m (300 ft). This is the lowest level at which photosynthesis can take place [C20: from a- 1 + -photic, from Greek phōs light] Webadj. 1. of or pertaining to light. 2. pertaining to the generation of light by organisms, or their excitation by means of light. 3. pertaining to the upper zone of a body of water, delineated … imax food court
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Webaphotic zone Definition An aphotic zone or the Midnight zone is the deeper zone of a marine ecosystem where no light can penetrate. In Greek “aphotic” means no light. Overview of … WebIn the aphotic zone, also called the tropholytic zone, the consumption of energy exceeds its production. The zones are demarcated by a plane of compensation at which primary … WebThe euphotic zone is the layer of water in which there is enough light for net photosynthesis. In other words, the rate of photosynthesis is faster than the rate of respiration (Fig. 2.42). There is an overall net production of oxygen in the euphotic zone. In clear tropical waters, the euphotic zone may extend to a depth of 80 meters (m). imax fishers indiana