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Topic: Insect


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  Insect Printouts - AllAboutNature.com
Insects are arthropods (a type of invertebrate, animals that lack a backbone).
The silkworm moth is an insect (not a worm) that produces a silken cocoon.
Wasps are insects with 2 pairs of wings and strong jaws.
www.enchantedlearning.com /subjects/insects/printouts.shtml   (1164 words)

  
  Insect - MSN Encarta
In addition, insects are of aesthetic importance—some insects, such as dragonflies, beetles, and butterflies, are widely thought to be among the most beautiful of all animals.
Insects range in length from the feathery-winged dwarf beetle, which is barely visible to the naked eye at 0.25 mm (0.01 in), to the walkingstick of Southeast Asia, which measures up to 50 cm (20 in) with its legs stretched out.
Insect exoskeletons are highly effective as a body framework, but they have two drawbacks: they cannot grow once they have formed, and like a suit of armor, they become too heavy to move when they reach a certain size.
encarta.msn.com /encnet/refpages/RefArticle.aspx?refid=761576664   (1194 words)

  
  Insect - Wikipedia, the free encyclopedia
Insects comprise the most diverse group of animals on the earth, with around 925,000 species described—more than all other animal groups combined: "Indeed, in no one of her works has Nature more fully displayed her exhaustless ingenuity," Pliny the Elder exclaimed.
Insects may be found in nearly all environments on the planet, although only a small number of species have adapted to life in the oceans where crustaceans tend to predominate.
Insects commonly regarded as pests include those that are parasitic (mosquitoes, lice, bedbugs), transmit diseases (mosquitos, flies), damage structures (termites), or destroy agricultural goods (locusts, weevils).
en.wikipedia.org /wiki/Insect   (3306 words)

  
 insect. The Columbia Encyclopedia, Sixth Edition. 2001-05
Insects are found throughout the world except near the poles and pervade every habitat except the sea (although there is one marine species of water strider).
Insects may feed on plants or decaying matter or prey upon other small animals (especially other insects) or parasitize larger ones; they may be omnivorous or highly specialized in their diets.
Many insects are valuable as predators on the harmful species, and some are important as scavengers and as aerators of the soil (see scarab beetle).
www.bartleby.com /65/in/insect.html   (1177 words)

  
 Insect Parasitic Nematodes
Insect parasitic nematodes are small, round worms that complete part of their life cycle in insects.
Insect parasitic nematodes are sold in the infective juvenile dauerlarva stage, which are barely visible to the unaided eye.
Insect parasitic nematodes require free water to move and are susceptible to death by drying.
www.ext.colostate.edu /pubs/insect/05573.html   (1731 words)

  
 Tutorial
Insects are extraordinarily adaptable creatures, having evolved to live successfully in most environments on earth, including deserts and the Antarctic.
Insects are cold-blooded, so that the rate at which they develop is mostly dependent on the temperature of their environment.
An insect's environment may be described by physical factors such as temperature, wind, humidity, light, and biological factors such as other members of the species, food sources, natural enemies, and competitors (organisms using the same space or food source).
www.nysaes.cornell.edu /ent/biocontrol/info/primer.html   (2084 words)

  
 Insect at AllExperts
Insects are the only invertebrates to have developed flight, and this has played an important part in their success.
The circulatory system of insects, like that of other arthropods, is open: the heart, which is little more than a perforated muscular tube along the dorsal midline, pumps the hemolymph to open spaces surrounding the internal organs; when the heart relaxes, the hemolymph seeps back into the heart.
Insects commonly regarded as pests include those that are parasitic (mosquitoes, lice, bedbugs), transmit diseases (mosquitos,), damage structures (termites), or destroy agricultural goods (locusts, weevils).
en.allexperts.com /e/i/in/insect.htm   (3224 words)

  
 Insect Morphology and Anatomy
An insect body has a hard exoskeleton protecting a soft interior, it is divided into three main parts (the head, thorax and abdomen) each of which is in turn composed of several smaller segments.
The amazing success of the insects must in part lie with the incredible mixture of flexibility and strength of the integument (that is the part of an insect that makes up the hard exoskeleton) that allows insects their freedom of movement without loss of defence and protection.
Most insects breath passively through their 'Spiracles' (special openings in the side of there cuticle) and the air reaches the body by means of a series of smaller and smaller pipes called 'Tracheae' when their diametre is large and 'Tracheoles' when their diametre is very small.
www.earthlife.net /insects/anatomy.html   (1463 words)

  
 Insect Allergy
Insect venom allergy is a harmful reaction to insect stings that occurs in people who have an abnormally high sensitivity to insect venom.
Insect venom allergy is suspected based on a constellation of suggestive symptoms that follow an insect sting.
The diagnosis is confirmed by performing a skin test with the venom of specific insects, such as honey bee, yellow jacket, hornet, wasp or fire ant that may be the culprit of the allergic reaction.
www.hmc.psu.edu /healthinfo/i/insectallergy.htm   (1040 words)

  
 Insect Facts
Insects are incredibly adaptable creatures and have evolved to live successfully in most environments on earth, including deserts and even the Antarctic.
Insects may reproduce by laying eggs, or in some species, the eggs hatch inside the female and are born a short time later.
Insects are cold-blooded, so the rate at which they grow and develop depends on the temperature of their environment.
www.ivyhall.district96.k12.il.us /4th/kkhp/1insects/buginfo.html   (1336 words)

  
 Insect Body Parts
The most visible parts of the body of an adult insect are: the head, the antennae, the mouthparts, the thorax, the wings, the legs, and the abdomen.
The abdomen is the posterior of the three body regions of an adult insect.
Insects use the antennae to detect odours or they use them as tactile (touch) organs.
www.bijlmakers.com /entomology/bodypart.htm   (308 words)

  
 Insect Collection   (Site not responding. Last check: 2007-11-05)
Insects are invertebrates with three pairs of legs, usually two pairs of wings, one pair of antenna, jointed appendages, and three distinct body regions --- head, thorax, and abdomen.
Insects with extremely long legs like crane flies or curved antenna and abdomens like ichneumon wasps should be placed on their left side and pinned through the right side of their body in the area of the thorax.
Insects without hairy or scaly coverings such as beetles and grasshoppers, may be dropped into hot (just simmering) water for a few moments to relax them.
sps.k12.ar.us /massengale/insect_collection.htm   (2251 words)

  
 Encyclopedia Smithsonian: Insect flight
The capacity for flight in insects is believed to have developed some 300 million years ago, and initially consisted of simple extensions of the cuticle from the thorax.
True flies are a large group of insects with only one pair of wings, although they have small balancing organs known as halteres where a second pair of wings might develop.
Flight in insects is gained by muscles, not attached directly to the wings, that move the wings indirectly by changing the shape of the thorax.
www.si.edu /resource/faq/nmnh/buginfo/insflght.htm   (642 words)

  
 Animal Encyclopedia: Leaf Insect
Scientists who study insects say there are more than one million known species of insects in the world.
As a kind of leaf insect, he mimics the shape, color and texture of leaves.
There are brown leaf insects, for example, who are found in flora that's predominantly brown.
www.animaland.org /asp/encyclopedia/leafinsect.asp   (138 words)

  
 Insect encyclopedia   (Site not responding. Last check: 2007-11-05)
Insects may fly into the ear and become trapped when a child is playing outdoors.Sometimes, the insect dies after entering the ear; other times,...
Insects as a group are beneficial to humans because they...
An insectallergy is an adverse or abnormal reaction to an insect sting or bite.
www.theflowerinfo.com /insect+encyclopedia.html   (888 words)

  
 Insect Orders
Animals (insects) are classified by kingdom, phylum, class, order, family, genus, species, author's name.
Insects are often in hibernation or at least rather immobile in the colder temperatures.
Insect feet are made of several segments and may have pads, hairs, or hooks.
insect.tamu.edu /fieldguide/glossary.htm   (1902 words)

  
 MedlinePlus Medical Encyclopedia: Insect bites and stings
This is a life-threatening allergic reaction known as anaphylaxis, and it requires urgent emergency care.
The non-emergency symptoms vary according to the type of insect and the individual.
For those who have a serious allergy to insect bites or stings, carry an emergency epinephrine kit (which requires a prescription).
www.nlm.nih.gov /medlineplus/ency/article/000033.htm   (625 words)

  
 Cornell News: Insect aerodynamics
An important key to solving the mystery of insect flight, Wang said, is the understanding of the vortex "shedding" and how the vortices behave when they separate from the moving surface that created them.
Any theory of insect flight has to account for both viscous and inertial effects, Wang said, noting that in a fluid environment like air, inertia is a force due to the motion of the fluid itself as fluid particles are carried along by their own velocity.
Biologists with high-speed video cameras have been able to document the oscillating motions of insect wings as they move up and down and change pitch by tilting the edges, and the complex motions are beginning to be incorporated in the design of robotic "insect" wings.
www.news.cornell.edu /releases/March00/APS_Wang.hrs.html   (1084 words)

  
 insect --  Encyclopædia Britannica   (Site not responding. Last check: 2007-11-05)
Insects are distinguished from other arthropods by their body, which is divided into three major regions: (1) the head, which…
Insects are distinguished from other arthropods by their body, which is divided into three major regions: (1) the head,...
Insects have been so successful in their fight for life that they are sometimes described as the human race's closest rivals for domination of the Earth.
www.britannica.com /eb/article-9105953   (838 words)

  
 insect - Search Results - MSN Encarta
Insect, small, air-breathing animal characterized by a segmented body with three main parts—head, thorax, and abdomen.
Arthropod, animal with a hard, outer skeleton and a jointed body and limbs.
Bug (insect), name properly applied to any member of a particular order of insects, including bed bugs, lace bugs, red bugs, squash bugs, chinch...
encarta.msn.com /encnet/refpages/search.aspx?q=insect   (138 words)

  
 Scientists Online: General Facts
The front wings of true bugs are thickened and colored near where they are attached to the insect's body, and are clearer and thinner towards the hind end of the wing.
As for the name "insect," it is from Latin; the name was originally given to certain small animals, whose bodies appear cut in, or almost divided.
A: I'm not sure what the smallest insect is (I had one here somewhere, but I can't seem to find it...) but the smallest insect eggs belong to a member of the family Tachinidae, a group of parasitic flies.
teacher.scholastic.com /researchtools/articlearchives/bugs/general.htm   (1294 words)

  
 Insects, Insect, Insect Anatomy at LiveScience.com
The most diverse group of animals on the planet, insects are generally classified as any of numerous invertebrate animals that are a member of the phylum Arthropoda, and of the class Insecta.
An insect’s adult body in characterized by three pairs of legs and a body segmented into a head, thorax, and abdomen, and usually two pairs of wings.
Virtually all insects are born from an egg laid by their mother.
www.livescience.com /insects   (322 words)

  
 INSeCT
INSeCT is publishing short essays by Catholic theologians from Africa on doctrinal, moral, and practical topics.
In response to this situation, INSeCT is initiating a project inviting regional reports on the state of Catholic theology around the world.
The fourth Network Council assembly of INSeCT was held June 7-12, 2005 in conjunction with the Catholic Theological Society of America.
www.uni-tuebingen.de /INSeCT   (756 words)

  
 CDC: West Nile Virus - QA: Insect Repellent Use and Safety
Insect repellents can help reduce exposure to mosquito bites that may carry viruses such as West Nile virus that can cause serious illness and even death.
Using insect repellent allows you to continue to play and work outdoors with a reduced risk of mosquito bites.
It is recommended NOT to use a single product that combines insect repellent containing DEET and sunscreen, because the instructions for use of insect repellents and use of sunscreen are different.
www.cdc.gov /ncidod/dvbid/westnile/qa/insect_repellent.htm   (2047 words)

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