Search Results - Larva
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A larva ( Latin; plural larvae) is a juvenile form of animal with indirect development, undergoing metamorphosis (for example, insects or amphibians). The larva can look completely different from the adult form, for example, a caterpillar differs from a butterfly. Larvae often have special (larval) organs which do not occur in the adult form. The larvae of some species can become pubescent and not further develop into the adult form (for example, in some newts). This is a type of neoteny. It is a misunderstanding that the larval form always reflects the group's evolutionary history. It could be the case, but often the larval stage has evolved secondarily, as in insects. In these cases the larval form might differ more from the group's common origin than the adult form. The early life stages of most fish species are considerably different from juveniles and adults of their species and are called larvae.
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Showing 1 to 8 of 8 Articles matching 'Larva' in related articles. |
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1. Worm Infestations Medicines - Drugs Used in Worm Infestations
September 17, 2008
Hookworm
In India, hookworm disease is mainly caused by Ancylostoma duodenale and amaricanus (hookworm). The ovum (egg) of the parasite grows into larva (baby parasite) in the soil, and usually penetrates the skin of those who walk barefoot. From the skin, the larva reaches the intestines through the blood and there it grows into an adult worm. The female wa reaches eggs in the intestines which are excreted in the faeces.
Infected patients may suffer from localized itching or skin rash when the larva enters through the skin. The most serious manifestation produced by the hookworm i... (read more)
Author: Francis Adam
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2. Natural Mosquito Control - What is it?
August 11, 2008
Every summer millions of people prepare themselves the best way they know how to try to reduce the number of mosquito bites they will suffer over the summer. Some will purchase obscene amounts of insect repellent, while others will transform their backyards into a citronella battlefield. Not only do mosquitoes leave us with irritatingly itchy, swollen bumps on our skin, but they are also the main carriers of the West Nile Virus, the dreaded malaria that is prevalent in many tropical countries, and other illnesses.
The age-old question remains. 'What is the most effective way to get rid o... (read more)
Author: Karen Foster
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3. Complete Information on Cutaneous larva migrans
June 18, 2008
Cutaneous larva migrans is the skin manifestation of hookworm infestation. People of all ages, and race can be affected if they have been exposed to the larvae. It is most commonly found in tropical or subtropical geographic locations and is relatively common. The main risk factor for this disease is contact with damp, sandy soil contaminated with infected cat and dog feces. The larvae may migrate at rates of a few millimeters to a few centimeters per day. Cutaneous larva migrans travel through the bloodstream, to the lungs, and then migrate into the mouth where they are swallowed and attach t... (read more)
Author: Juliet Cohen
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4. The Mosquito Life Cycle
February 10, 2008
The mosquito life cycle can only begin in an aquatic environment. The female mosquito lays between 50 and 100 eggs on the water's surface, and so it begins. While both male and female mosquitoes feed on nectar, only the female mosquito feeds on blood in order to produce her offspring. Male mosquitoes live for about two weeks, while females live from three weeks to several months, and can lay approximately 500 eggs during its life span. The mosquito life cycle A female mosquito's eggs will hatch within 24 hours and will develop into larvae. Mosquito larvae or "wigglers" must breathe air ... (read more)
Author: Karen Foster
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5. Masks: For a Touch of Mystery
February 03, 2008
The term 'mask' is derived from old Italic "masca", which means an evil or hideous character. In Latin it is been referred as 'larva'. It would be really exciting to know that in Latin it is a form of persona that implies mask, a role or a person. Sociologists and anthropologists to a certain level have been able to define the role of Masks in different societies and culture. Essentially, they have been used to serve different rituals devoted to hunting, war, death and have been used in ceremonies like baptism and funerals. In the ancient times, it was primarily used as a weapon to weed away t... (read more)
Author: Mohita Bhargava
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6. Mosquito Netting Canopy: Your Best Defense
August 19, 2007
When traveling or enjoying outdoor activities such as camping, there is the risk of being exposed to mosquito bites and the potential diseases that they carry. Wearing clothes that cover your entire body and applying insect repellent will decrease the risk of being stung, but the safest, simplest and most effective way to control mosquito bites is to use a mosquito netting canopy.
Guidelines
When purchasing a mosquito netting canopy, it is important to be well-informed. Mosquito netting can be made out of two types of material, polyester and cotton. Polyester is a good choice as it ... (read more)
Author: Karen Foster
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7. The Buzz on Malaria Symptoms
August 06, 2007
Malaria symptoms, such as headache, joint pain, fever, sweating, nausea and vomiting, can appear flu-like in nature and can easily be overlooked, but failure to diagnose and treat malaria can lead to coma and possible death. Other common symptoms of malaria include back pain, chills, dry cough, enlarged spleen, impaired function of the brain or spinal cord, seizures and loss of consciousness.
The plasmodium parasite Malaria is caused by the plasmodium parasite and can only be transmitted by the female mosquito. There are four main types of malaria that can affect humans and there exists... (read more)
Author: Karen Foster
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8. How to Create a Butterfly Garden
August 16, 2006
You are welcome to use this article on your website or in your newsletter as long as you reprint it as is, including the contact information at the end. Website URLs must be active links. You are welcome to use this article with an affiliate link, http://www.freeplants.com/resellers.htm
People who love to garden also tend to enjoy watching butterflies flitting about. After all, butterflies are just as pretty to look at as the flowers that they visit. Gardeners can entice even more butterflies to visit their gardens by creating gardens specifically for butterflies.
It’s quite ea... (read more)
Author: Kathy Anderson
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