Search results
Results from the WOW.Com Content Network
The eyespot apparatus (or stigma) is a photoreceptive organelle found in the flagellate or (motile) cells of green algae and other unicellular photosynthetic organisms such as euglenids. It allows the cells to sense light direction and intensity and respond to it, prompting the organism to either swim towards the light (positive phototaxis ...
Like other euglenoids, Euglena possess a red eyespot, an organelle composed of carotenoid pigment granules. The red spot itself is not thought to be photosensitive . Rather, it filters the sunlight that falls on a light-detecting structure at the base of the flagellum (a swelling, known as the paraflagellar body), allowing only certain ...
They may be a form of self-mimicry, to draw a predator's attention away from the prey's most vulnerable body parts. Or they may serve to make the prey appear inedible or dangerous. Eyespot markings may play a role in intraspecies communication or courtship; a well-known example is the eyespots on a peacock's display feathers.
For premium support please call: 800-290-4726 more ... with variable rates and interest-only payments during the draw period. It’s best for ongoing medical expenses or when total costs are ...
It possesses an eyespot, a small area highly sensitive to light, [41] [42] which triggers the two flagella differently. [43] Those responses are adaptive, on a timescale matched to the rotational period of the cell body, [ 44 ] [ 45 ] [ 46 ] and allow cells to scan the environment and swim toward light. [ 47 ]
Hoda Kotb’s daughters Haley and Hope will unbox an equal amount of presents on Christmas morning. But in Jenna Bush Hager’s family, it’s a free-for-all.
The best of these digital banks and online accounts come with no fees and no minimum deposits — like SoFi Checking and Savings that pays up to 4.00% APY — removing any challenges to ...
Eyespot (mimicry), a color mark that looks somewhat like an eye; Eyespot, a sensory organ of invertebrates; see simple eye in invertebrates; Eyespot, a type of eye in some gastropods, a part of sensory organs of gastropods; Eyespot apparatus, a photoreceptive organelle found in the flagellate (motile) cells unicellular photosynthetic organisms