I remember when I was younger I played a game of hide and and seek with my brothers. I was hiding in my garage when all the sudden I saw a giant‚hairy wolf spider! I ran to my brothers and parents and told them what had seen‚ but when we got there it was gone. Many people have a horrible fear of spiders or arachnophobia. Arachnophobia is a very simple and common phobia and‚ in my opinion‚ is very obnoxious. A person with a very bad arachnophobia could freak out or faint in a very stressful situation
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INSECTS Insects‚ being larger and having a hard‚ chitinous and therefore impermeable exoskeleton‚ have a more specialised gas exchange system. Insects have no transport system so gases need to be transported directly to the respiring tissues. There are tiny holes called spiracles along the side of the insect. The spiracles are openings of small tubes running into the insect’s body‚ the larger ones being called tracheae and the smaller ones being called tracheoles. The ends of these tubes‚ which
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Snails‚ clams‚ squids‚ chiton. Is it possible that they may all be related in some way? Could they come from the same family tree? How does an octopus related to an oyster other than living in water? Yes it is very true that all of the above named specimen evolved from the same ancestor. The hypothetical ancestral mollusk has evolved into so many different species that are adapted to live in a variety of environments. Among the many species clams and snail‚ land snails in particular‚ have evolved
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The Fattail Scorpion is one of the most dangerous species of scorpions. In many places this is known at the man killing scorpion‚ due to the fact that so many people have died once they have been stung by this scorpion. A description of this scorpion would be they are fairly small with an full grown size of about 4-5 inches. The females are bigger than the males. The tail on this Scorpion is very fat and that is where the name comes from. This particular Scorpion offers a very strong venom. They
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Pesky Arthropods Oh‚ I absolutely despise those eight-legged arthropods capable of making you yelp‚ jump and hold onto something for dear life. The way the arachnid stares at you with those black beady eyes really gives you the heebie-jeebies. As it crawls towards you‚ you are absolutely petrified trying to figure out a way to execute it the most lethal way possible. Although‚ you may be a thousand times bigger than the specimen‚ it’s still able to give you a shiver down your spine. You might have
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Aquatic vertebrates fish having a boney or cartilaginous skeleton spinal column a a large brain Fin is a thin component or appendage attaches to a large body Scales the skin of fish Fresh water fish fish that spend most of their live in non salt water Round fish swim in a vertical position and have eyes on both sides of their head Flat fish has asymmetrical compressed body swim horizontal and have eyes on top of their head Mollusk are shellfish characterized by soft unsegmented
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bloodsucking parasitic arthropods such as fleas ‚ lice and ticks. Rickettsias are named after their discoverer‚ the American pathologist Harold Taylor Ricketts‚ who died of typhus in Mexico after confirming the infectious agent of that rickettsial disease. Rickettsias unlike other bacteria‚ but like viruses‚ they require a living host (a living cell) to survive. Rickettsias from infected vertebrates‚ usually mammals‚ live and multiply in the gastrointestinal tract of an arthropod carrier but do not
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PARASITOLOGY 411 (VETERINARY ENTOMOLOGY AND PROTOZOOLOGY) First semester SY 2012-20113 Subject and Course Title: VPARA 411 ( VETERINARY ENTOMOLOGY AND PROTOZOOLOGY) Course Description: Important arthropod and protozoan parasites of domestic animals‚ their morphology‚ biology‚ pathogenicity‚ transmission‚ control and prevention. Lecturer and Lab Professor: Mila Gracia E. Villanueva‚ DVM‚ MS Lecture time: 8:00 - 9:00 AM MWF Lab Time:
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said to be stable structurally and chemically thus is considered an outstanding medium for soil organisms such as bacteria‚ fungi‚ protozoa‚ nematodes‚ arthropods‚ and earthworms. The potential habitats of these soil invertebrates are the spaces within the surface litter‚ holes in soil aggregates and pore spaces‚ root channels‚ etc. Soil arthropods are vital link in the food chain as decomposers. They play important roles in controlling the rate of litter decomposition and in altering nutrient and
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B04 Wong Lap Jack A0126596U Convergence or Coincidence??? Evolutionary convergence is the process by which unrelated or distantly related organisms of different lineages evolve similar smorphology‚ organs‚ and adaptations‚ but that were not present in the last common ancestor of those groups. Evolutionary convergence involving unrelated organisms living in similar environments but in different places or even in different environments. Similar or different environments have several challenges
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