Ommatidia
Arthropods which possess 8 legs belong to sub phylum Arachnida . They include spiders , scorpions and mites .
A hard outer body covering called an exoskeleton.Specialized mouth partsJointed legsCompound EyesSegmented body
Characteristics of arthropods: 1 - a hard outer body covering called an exoskeleton 2 - specialized mouth parts 3 - jointed legs 4 - compound eyes 5 - segmented body 6 - bilateral symmetry 7 - a tubular alimentary canal, with mouth and anus 8 - respiration by means of gills, tracheae and spiracles
All arthropods have the followingcharacteristics.1. A hard outer body covering called an exoskeleton.2. Specialized mouth parts3. Jointed legs4. Compound Eyes5. Segmented body__ Nissy 2012
It is not likely that the annelids evolved from the arthropods is as much as they are the much simpler of the two groups of organisms. The arthropods have a well developed open circulatory system, segmented muscles and a complex nervous system (including eyes and chemoreceptors, the antennae) and an exoskeleton.
Compound Eyes
You might be talking about "ocelli". It means "one single eye". Some arthropods (insects among them) have compound eyes and ocellis, which means that have eyes that have many smaller eye-like units= compound eyes, and also ocellis = individual eye units. For instance, flies have compound eyes and spiders have many ocellis. Here is an article about it: http://en.wikipedia.org/wiki/Ocelli
Butterflies have a compound eye because they, like flies, grasshoppers, and other insects, as well as crabs and crayfish (and a ton of other things!) are arthropods. All arthropods have compound eyes, in contrast to vertebrates, which have camera eyes.
Arthropods which possess 8 legs belong to sub phylum Arachnida . They include spiders , scorpions and mites .
The compound eye with many little eyes making up one image in the brain. Note that next to the two main compound eyes there may also be little separate eyes, or ocelli - three is a common number for those, sitting in between the two large eyes.
they have two eyes. These are called facet eyes. all flies have more then two eyes, most have two compound eyes and three simple ones Flies have two compound eyes. Compound eyes can consist of thousands of photoreceptor units (ommatidia), or individual eye units that focus sight in different directions.
Millipedes AND insects both fall under the phylum Arthropoda. Arthropods are characterized by jointed feet, exoskeletons, open circulatory systems, and, usually, compound eyes.
You would put it into the insect class because it has six legs, a three part body, compound eyes and one pair of antennae.
Arthropods have armor or shells and big eyes take the dragonfly or scorpion for example
no they don't
A centipede's eyes are black, although some centipedes do not have eyes. Some have compound eyes that can contain up to 200 optical units. Regardless, centipedes have very poor eyesight.
polymer is compound which has repeated units and a compound may not have repeated units