Insects have compound ones; arachnids have simple ones
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Insects - Arthropods  The arthropods are the first animal group to have jointed legs. ... It then regrows a new one. ... Insects have two sets of eyes: simple eyes and compound eyes.
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Arthropod - Wikipedia  An arthropod is an invertebrate animal having an exoskeleton (external skeleton), a segmented body, and jointed appendages (paired appendages). Arthropods form the phylum Arthropoda, which includes the insects, ..... The strong, segmented limbs of arthropods eliminate the need for one of the coelom's main ancestral...
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Different Eyes of Insects | Animals - mom.me  Instead, most adult insects have compound eyes which make them excellent at seeing movement. ... In fact, each one is essentially a separate eye containing a lens, a cone, pigment cells ... Insects can have two to three simple eyes which are not used for discriminating ... Do Arachnids Have Compound Eyes Like Insects?
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Do Arachnids Have Compound Eyes Like Insects? | Animals - mom ...  Instead of compound eyes, arachnids have simple eyes, meaning each eye has a ... One compound eye can have thousands of ommatidia, giving the insect a...
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Arachnid - Wikipedia  Arachnids are a class (Arachnida) of joint-legged invertebrate animals (arthropods), in the subphylum Chelicerata. All arachnids have eight legs, although the front pair of legs in some species ... Many arachnids have only one or the other type of excretory gland, although several do have both. The primary nitrogenous waste...
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Spider - Wikipedia  Spider. Spiders (order Araneae) are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom. They are the largest order of arachnids and rank seventh in total species diversity among all other orders of organisms.
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Wikijunior:Bugs/Dragonfly & Damselfly - Wikibooks, open books for ...  They have shimmering wings, large reflective eyes and a long body. ... Their forewings and hindwings narrow at the base and look like long ... Each compound eye has up to 28,000 separate lenses (ommatidia). .... In the United States, they are called darning needles, snake doctors, and snake ... See also: Wikijunior:Bugs...
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Document 9: Drosophila Melanogaster  Similar to all insects Drosophila is covered in a chitinous exoskeleton; has three main ... head with large, red, compound eyes; three smaller simple eyes, and short ... stripes on the dorsal surface of its abdomen, which can be used to determine ... Thus at 25o c the life cycle may be completed in about 10 days, but at 20oC...
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Life Cycle of Fireflies and Lightning Bugs - Insects - About.com  Learn about the life cycle of fireflies, also known as lightning bugs. ... Firefly larvae look quite different from the familiar adults. .... She may resemble a firefly larva, but have large, compound eyes. ... Insects 101  The Field of Entomology  Profiles of Flying Insects  Profiles of Wingless Insects  Spiders (Class Arachnida)...
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structure  The head holds most of an insect's sensory organs, as well as its brain and mouth. ... Insects with poor vision, such as some worker ants, often have just a few ... have three much simpler eyes, called ocelli, arranged in a triangle on top of the head ... These joints make the abdomen much more mobile than the head or thorax;...
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Insect morphology - Wikipedia  Insect morphology is the study and description of the physical form of insects. The terminology ... There is enormous variation in body structure amongst insect species. .... Most insects have one pair of large, prominent compound eyes composed of units .... Chewing insects have two mandibles, one on each side of the head.
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Arthropod - Wikipedia  An arthropod is an invertebrate animal having an exoskeleton (external skeleton), a segmented ... One arthropod sub-group, insects, is the most species-rich member of all ... (includes spiders and scorpions), Crustacea (shrimps, lobsters, crabs, etc.) ... The exoskeletons of most aquatic crustaceans are biomineralized with...
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Guide to Common Insects and Other Arthropods ... - Rob Dunn Lab  A. With 6 walking legs, antennae, compound eyes and [often] wings . ... Flat, gray, scaly insects; lack wings; have 3 tails (cerci) and small, leg-like structures under ... With one body segment; often flattened; legs usually short and thick; small to tiny ..... 3,000 species of which live in North America alone) for fertilization.
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Arthropods  Arthropod bodies are segmented like those of annelids, but the individual segments ... pendages include legs, antennae, and a complex array of mouthparts.
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arachnid | arthropod | Britannica.com  When the young are sufficiently developed, they are expelled and carried about on the mother's back until after the first molt. False scorpions carry their eggs in a...
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Science Explorations: Classify Insects: Zoom in on True Bugs ...  Insects are the largest single group of animals in the world. ... Insects also have one pair of feelers, or antennae, at the front of the head. ... These muscles control the movements of the legs and wings. ..... The tube opens just under the brain. ... Some insects, such as flies and mosquitoes, have only one pair of wings.
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Arthropods  There are over three times as many species of arthropods as there are of all other ... Insects can open and close these spiracles, to conserve water that would otherwise be ... jointed appendages; cuticle; chitin; exoskeleton; molt; tagma; tagmosis; head; thorax ... Male crayfish also use one pair of legs as a copulatory organ.
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Science - jService.io - Jeopardy trivia question API  (Kelly of the Clue Crew reading points to a fly's eye on the monitor.) An insect's compound eye can detect 300 flashes of light per second compared to a human's 50, using thousands of tiny lenses known as these, as in a diamond, a facet .... This fossilized resin from prehistoric pines can preserve an insect forever, amber...
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Identification of Arthropods  A Strange Site - identification of arthropods by Alessandro Strano. ... They have two compound eyes (formed by many eyes called ommatidia) and/or ... Most of them are oviparous, they lay eggs, but there are also viviparous ... the first three pairs of legs are fitted to catch and triturate food) these last two ... Diplopoda Class.
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Orb-weaver spider - Wikipedia  Orb-weaver spiders or araneids are members of the spider family Araneidae. They are the most ... Araneids have eight similar eyes, hairy or spiny legs, and no stridulating organs. The family is cosmopolitan, including many well-known large or...
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Insect - Wikipedia  Insects are a class of invertebrates within the arthropod phylum that have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. They are the most diverse group of animals on the planet, including more ... Insect growth is constrained by the inelastic exoskeleton and development...