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Economic importance of snail

How To Use Wiki In The Classroom
In ruminants, this pathology incurs additional treatment costs and affects the growth, the survival, the fertility, and the milk and meat production, resulting in large economic losses. More and more classrooms are now learning, creating, reading, and testing online. In order to keep up with our technologically demanding lifestyles, the traditional classroom is making way for such innovative tools as wiki. Not only is this an inexpensive way to manage your classroom, it’s also a fun way to engage students in content across the curriculum.

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gastropod, any member of more than 65,000 animal species belonging to the class Gastropoda, the largest group in the phylum Mollusca. The class is made up of the snails, which have a. Economic Losses. Invasive apple snails can cause significant economic losses, predominately through their role as a pest of wetland rice crops. In the Philippines, for example, invasive apple snails caused economic losses of between USD 425 million and USD 1.2 billion in. Economic Importance for Humans: Positive. NONE. Economic Importance for Humans: Negative. Schistosoma haematobium is the cause of schistosomiasis also known as Bilharzia. Hosts of the parasite are humans. Schistosomiasis affects 200 million people worldwide and is considered one the most serious pathogenic infections today.

Methanol extracts of Callistemon viminalis (Sol. Ex Gaertner) G.Don Ex Loudon fruits, bark and leaves were tested for molluscicidal activity.Snails were collected and kept in dechlorinated water under standard condition. Ten adults Biomphalaria Alexandrina, of the same size, were introduced in plastic acquaria for each experiment.The fruits, barks and leaves were extracted with.

38 ECONOMIC STATUS survey of the problem in Micronesia. More recently, J. W. Hes (in litt. Feb. 5, 1952) stated that in Java the economic importance of this snail has been overestimated; Chamberlin's investigation in Tinian (1952a) indicated only "slight damage" to crops on that island and that the rats and insects provided a far worse threat. In the Philippines alone, estimates of economic losses associated with apple snails ranged from US$425 million to US$1.2 billion in 1990 (Naylor, 1996). ... Rice-fish farming serves a dual purpose: controlling the snail population and enhancing the food security of rice farmers by supplementing their diets and generating income (FAO, 1998). economic importance of pulmonata Call now for a free quote 021 4840600. or certbot http 01 challenge to book online Home. About. Services. Painting & Decorating. Carpentry & Odd Jobs. Plumbing Jobs. Electrical Work. Online Booking. Testimonials. News. Contact. boston children's hospital f&a rate agreement Navigation.

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The Giant African Snail (Achatina fulica) is considered to be one the world’s 100 worst invasive alien species. The snail has an impact on native biodiversity, and on agricultural and horticultural crops. In India, it is known to feed on more than fifty species of native plants and agricultural crops and also outcompetes the native snails. It was introduced into India in 1847.

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Molluscs include mussels, scallops, oysters, periwinkles, whelks, squid, clams, snails, and octopus. Mollusca Characteristics. They are mostly marine in water, few freshwater and some. Fish have formed an important item of human diet. Nearly all fish freshwater and marine are edible and have been an important source of protein, fat and vitamins A and D since time immemorial. In most fishes, the flesh is white, contains about 13 to 20% of protein and has a food value of 300 to 1600 calories per pound.

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Schistosomiasis is an acute and chronic disease caused by parasitic worms. People are infected during routine agricultural, domestic, occupational, and recreational activities, which expose them to infested water. Lack of hygiene and certain play habits of school-aged children such as swimming or fishing in infested water make them especially.

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  1. Wikispaces.com
    Designed specifically for use in the classroom, wikispaces is a social writing platform that also acts as a classroom management tool by keeping teacher and students organized and on task. Not only does this site provide easy to use templates, it’s free and also has a variety of assessment tools. Teachers can also use wikispaces to create assignments and share resources.
  2. midwest dental oakwood eau claire wiAt its most basic level, this website is free to users. Some of its features include easy to use website templates with unlimited pages, rustic furniture phoenix and domain name, control over ads, and the chance to earn some money with ads, which can be used for the next class trip.
  3. home depot smokerWith over 300,000 education based workspaces, this wiki-like website offers educators a range of options that encourage student-centered learning. Students can build web sites or web pages that can be shared with other students and staff.

The local abundance of snails and slugs can be spectacular. Millions of some brackish-water and freshwater species can live on small mud flats. An acre of British farmland may hold 250,000 slugs, and a Panamanian montane forest was estimated to have 7,500,000 land snails per acre. Despite this abundance, snails and slugs often pass unobserved. Shells continue to grow with the snail over the course of its life, and the rings it has are indicators of their age. The whole life cycle of a land snail is not very long in human terms. A single snail can live 2 to 7 years according to its species, but in captivity, the life expectancy extends to 10 or 15. In few occasions, they live longer. Herliculture (snail farming), is the science and occupation of growing snails for food, slime, eggs, or other economic uses. A snail farmer in Kuje, Mrs Antonia Ekpe, urged youths to invest in heliculture, adding that it's a viable business venture that was gradually being explored in Nigeria and Africa.

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  1. Set Clear Expectations
    Before setting wiki guidelines and sharing them with your students, consult your school’s policies on social media. Provide students with written guidelines that must be adhered to. Let students know that if they publish inappropriate content, there will be consequences. Asking students to sign a contract is also an option.
  2. Start Small
    Take baby steps. Everyone will benefit from gradually increasing wiki use in the classroom. By starting small, teacher’s can stay on top of monitoring classroom wiki, thus remaining in control.
  3. Ask for Help
    Although wiki is fairly easy to use, there are times when you’ll run into stumbling blocks. Ask for help when you don’t understand something. You’d be surprised at much your students and colleagues might know about wiki.
  4. Read other Wikis
    As a class and individually, explore other classroom wikis. This will give you ideas and inspirations for your own wiki pages.
  5. Let Wiki Work for You
    Wiki is more than just a learning tool for students; it’s a communication tool for teachers. Use wiki to keep parents informed and post assignments and other class related content. Your wiki page is easily edited and updated so there’s no more need for a last minute trip to the copy machine.
  6. School-wide Wikis
    Use wikis to showcase field trips, class events and school-wide events, such as the prom or last week’s football game.
  7. Pinterest
    This site has a wealth of information on wiki for the classroom. Simply type in a search term such as "wiki tips for the classroom".  If you don’t already have a Pinterest account, learn more about it through falls valley storage.
  8. Collaborate
    Do lots and lots of group work. Create assignments that require students to work together, continuously communicating as part of team as they would in the real world.  For example, a media class can work in teams to create an advertisement for a product of their choice that involves print and/or video.  For a science class, have students work together as a research team investigating the sudden drop in the local wolf population.
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  1. Historical Figures
    Instead of just another boring academic paper on an historical figure, make research and documentation fun by creating wiki fan pages. Students can add and edit text, post photos and famous quotes, as well as links to the references they used.
  2. Student as Editor
    Turn grammar into a challenging and competitive game. Have students use wiki to edit text with grammatical errors. Teachers can put students into groups and those with the most edits wins.  Individual edits can also be counted.
  3. Join the Debate Team
    Using a written set of guidelines, teachers post topics that students can argue by using wiki online forums. Teachers will monitor the discussions/debates while students learn online debate etiquette.
  4. Create a Collaborative Story
    Start with one sentence pulled from a hat, “The girl looked beyond the dusty field and saw a team of horses approaching, their riders hands tied behind their backs.” From here, students add and edit text to create a story. Set a minimum amount of words each student must submit. Chances are, you’ll actually have to set a maximum amount of words.
  5. Poetry Class
    For English class, the teacher can post a poem online and have the students discuss its meaning.  Students can also post their own poems for peer review.
  6. Book and Film Reviews
    Students can use wiki to write assigned book and film reviews. Other students can add to as well as comment and discuss the reviews on a monitored forum.
  7. Word Problems
    For math class, teachers can post word problems on wiki. Students work individually or in groups to solve the problems.
  8. Wiki Worlds
    For history and social studies, students can create pages for historical events such as famous battles or specific periods in history, creating entire worlds based on historical facts.
  9. Geography
    Wiki pages can be used to study geography by giving states or countries their own wiki page. Have students include useful and unique information about each geographical area.
  10. Fact Checking
    The reason why wikis is often blacklisted as a reputable source is because not everyone who contributes to a wiki page is an expert. Keep your students on their toes by assigning them to fact check each other’s work.
  11. Riddles
    Encourage teamwork by posting riddles and having groups of students solve them through online collaboration. The students will use a forum to discuss what the possible answer is.
  12. Group Assessments and Tests
    As an alternative way to administer assessments, consider using wiki group assessments.  Students work together, helping one another to achieve success.

Snail is an important source of protein, snail also plays an important role in folk medicine irrespective of snail considerable high potentials, local snails production has failed to meet the. Snails are a vital part of the decomposition of vegetative litter as well as important nutrient recyclers which aid in the maintenance of soil health (Center for Biological Diversity, 2014, p. 5). Decaying plant matter is altered by snails and as a result promotes fungal and bacterial growth (Center for Biological Diversity, 2014, p. 5).

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Features of the Venom. The smaller cone snails can give humans a painful sting but aren't dangerous. The bigger ones—which may be as long as nine inches—can be deadly for humans. They attack to defend themselves as well as to catch their prey. Cone snail venom contains a complex mixture of many different chemicals.
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