When the microgametophyte is first formed inside the pollen grain four sets of fertile cells called tapetum, which supplies food to the cell and eventually becomes the cell wall for the pollen grain.
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If the tapetum lucidum can brighten the image enough for cone cells to function, the animal will have colour vision .-- Bowlhover 22 : 54, 7 January 2007 ( UTC)
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Thinner axons in the genu connect the prefrontal cortex between the two halves of the brain; these fibres arise from a fork-like bundle of fibers from the tapetum, the forceps anterior.
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Unlike most diurnal primates, but like all strepsirhine primates, the ring-tailed lemur has a tapetum lucidum, or reflective layer behind the retina of the eye, that enhances night vision.
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Nightjars have relatively large eyes, each with a tapetum lucidum ( reflective layer behind the retina ) that makes the eyes shine in torchlight and improves light detection at dusk, dawn and in moonlight.
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As crepuscular hunters, dogs often rely on their vision in low light situations : They have very large pupils, a high density of fovea, an increased flicker rate, and a tapetum lucidum.
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In some animals, the retina contains a reflective layer ( the tapetum lucidum ) which increases the amount of light each photosensitive cell perceives, allowing the animal to see better under low light conditions.
48.
However, since eyeshine is a type of iridescence, the color varies with the angle at which it is seen and the minerals which make up the reflective " tapetum-lucidum " crystals.
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The " tapetum lucidum " is a reflective structure that is responsible for this superior night vision as it mirrors light back through the retina exposing the photoreceptor cells to an increased amount of light.
50.
Red-eye effect, a reflection of red blood vessels, appears in the eyes of humans and other animals that have no tapetum lucidum, hence no eyeshine, and rarely in animals that have a tapetum lucidum.
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