[DOC] [TLE] compound eye - The Worlds of David Darling [PAR] Figure 1. Compound eye of the fruit fly, Drosophila melanogaster. Credit: J. 
Kumar ... of hundreds or thousands of tiny lens-capped optical units called 
ommatidia. ... and cone into a channel, known as a rhabdom, which contains light
-sensitive cells. ... Diurnal insects have apposition eyes, whereas nocturnal 
insects have... [DOC] [TLE] Ommatidium - Wikipedia [PAR] The compound eyes of arthropods like insects, crustaceans and millipedes are 
composed of units called ommatidia ... The brain forms an image from these 
independent picture elements. ... species, in low-light situations, the pigment is 
withdrawn, so that light entering the eye might be detected by any of several 
ommatidia. [DOC] [TLE] The Compound Eye - RCN [PAR] Flicker effect; Resolution and Sensitivity; Color vision; Ultraviolet vision ... (
Despite their structural differences, both insect and vertebrate eyes ... The 
pigment cells ensure that only light entering the ommatidium parallel (or almost 
so) to ... There may be thousands of ommatidia in a compound eye with their 
facets spread over... [DOC] [TLE] ARCHIVE - Flying insects - Comparative Physiology of Vision [PAR] Dec 11, 2011 ... In most insects there is one pair of large, prominent compound eyes composed of 
units called ommatidia (ommatidium, singular), of which there may be ... A 
compound eye may consist of thousands of individual photoreceptor units or 
ommatidia. ... Dorsal ocelli are light-sensitive organs found on the dorsal... [DOC] [TLE] Insect-Eye Digital Camera Sees What You Just Did  Phenomena [PAR] May 2, 2013 ... Arthropodsinsects, spiders and their kinhave compound eyes, which consist 
of hundreds or thousands of individual units or ommatidia. ... Like other cameras, 
this one has a lens and a sheet of light detectors that acts as a ... With a curved 
retina, you don't need these lenses, and the camera can shrink. [DOC] [TLE] Vision - Biology Encyclopedia - cells, plant, body, function, human ... [PAR] Light enters a depression lined with pigment-containing, light-sensitive cells. ... 
crab and the extinct trilobite, have compound eyes, constructed of as few as one (
in some ants) to as many as thirty thousand (in some dragonflies) individual units 
called ommatidia. ... These seem to awaken insects for their daily activities. [DOC] [TLE] Insect Structure and Function. Biology article by D G Mackean [PAR] The crustacea and insects also have antennae, compound eyes and, often, three 
... each segment of the body, but in some insects there are only one or two 
openings. ... eyes of insects consist of thousands of identical units called 
ommatidia packed ... Each ommatidium can therefore record the presence or 
absence of light,... [DOC] [TLE] Neuroscience for Kids - Invertebrate Nervous System [PAR] Euglena have an eyespot that acts as a shield for a light sensitive receptor. ... 
Neuroscientists like these cells because they are easy to: 1) see 2) record action 
potentials 3) inject ... Insects have a compound eye containing many different 
units called "ommatidia". ... There can be thousands of ommatidia in a single 
insect eye. [DOC] [TLE] Insect Vision - Cronodon [PAR] Each lens is part of a prismatic unit called an ommatidium (plural ... one can often 
sex flies by the size of their compound eyes - male flies have ... light-sensitive 
pigments called rhodopsins (rhodopsins require vitamin A for their manufacture). 
... brain integrates these images and so what the eye 'sees' and what the insect... [DOC] [TLE] name - Virtual Learning Environment [PAR] The eyes of arthropods may be in the form of photoreceptors, simple eyes or ... or 
front surface of the head of nymphs and adults of several hemimetabolous 
insects. ... These ocelli are sensitive to light intensity and thus capable of 
detecting .... of the visual unit, an ommatidium, of the compound eye and explains 
the vision in... [DOC] [TLE] THE SIZE OF OMMATIDIA IN APPOSITION EYES [PAR] scale up a small compound eye to suit a large insect; in this paper the optimum ... 
of a

Question: There may be thousands of ommatidia, light-sensitive units, in an insect's compound one of these
Answer: Eyes