Spreading of Communicable Disease Through Vectors :
Through insects and animals: There are some insects and animals which act as carriers of disease-causing microbes. These animal insects are called vectors. Vectors carry disease-causing microbes from an infected person to a healthy person and cause disease. Some of the vectors are:
(i) Housefly: The housefly is perhaps the most dangerous disease carrier. It collects the disease-causing microbe on its legs and mouth parts from faeces an organic wastes. The same housefly when sits on our exposed food items, leaves the disease-causing microbes on the food. When we consume such food, we get infected. Various diseases like cholera, dysentery, typhoid and tuberculosis are known to spread by houseflies through contaminated food and water. So, we should avoid eating uncovered food items.
(ii) Mosquito : The female Anopheles mosquito sucks the blood of human beings. While doing so, it also transmits Plasmodiurn (a protozoan) into the human blood. Plasmodium causes malaria, a fatal disease. Aedes mosquito acts as a carrier of dengue virus. All the mosquitoes breed in water. Hence one should not let water collect in coolers, tyres, flower pots, etc. By keeping our surroundings clean and dry, we can prevent mosquitoes from breeding.
Except mosquitoes, there are a lot of insects and other arthropods(or even other invertebrates) that could act as vectors, e.g. ticks,flies,sand flies,triatomines or even some fresh water snails.
In animals: Several microorganisms cause diseases not only in humans but also in other cattle that is cows, buffaloes and poultry birds. The diseases reduce the milk egg production, growth of birds and death.
In plants: Several microorganisms cause diseases in plants like wheat, rice, potato, sugar cane, apples, oranges, cotton and jute. The diseases reduce the yield of crops. The plant diseases are transmitted through seed, air and soil.
Epidemics are caused by _________________. | |||
Right Option : D | |||
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Which of the following disease is communicated with the help of insects? | |||
Right Option : D | |||
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Leprosy is caused due to __________ | |||
Right Option : D | |||
View Explanation |
One of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
My experience with Abhyas academy is very nice or it can be said wonderful. I have been studying here from seven class. I have been completing my journey of three years. I am tinking that I should join Abhyas Academy in tenth class as I am seeing much improvement in Maths and English
My experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Abhyas institute is one of the best coaching institute in the vicinity of Ambala cantt.The institute provides good and quality education to the students.The teachers are well experienced and are very helpful in solving the problems. The major advantages of the institute is extra classes for weak...
In terms of methodology I want to say that institute provides expert guidence and results oriented monitering supplements by requsite study material along with regular tests which help the students to improve their education skills.The techniques of providing education helps the students to asses...
Abhyas is an institute of high repute. Yogansh has taken admission last year. It creates abilities in child to prepare for competitive exams. Students are motivated by living prizes on basis of performance in Abhyas exams. He is satisfied with institute.
We started with lot of hope that Abhyas will help in better understnding of complex topics of highers classes. we are not disappointed with the progress our child has made after attending Abhyas. Though need to mention that we expected a lot more. On a scale of 1-10, we would give may be 7.
Abhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
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Being a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
The experience was nice. I studied here for three years and saw a tremendous change in myself. I started liking subjects like English and SST which earlier I ran from. Extra knowledge gave me confidence to overcome competitive exams. One of the best institutes for secondary education.
Abhyas is good institution and a innovative institute also. It is a good platform of beginners.Due to Abhyas,he has got knoweledge about reasoning and confidence.My son has improved his vocabulary because of Abhyas.Teacher have very friendly atmosphere also.
Third consective year,my ward is in Abhyas with nice experience of admin and transport support.Educational standard of the institute recumbent at satisfactory level. One thing would live to bring in notice that last year study books was distributed after half of the session was over,though study ...
My experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
It was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
It was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Abhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
It has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Abhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
A marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.