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Multiple choice evs mosquitoes and malaria diseases caused by mosquitoes contaminated water spreads disease water borne diseases mosquito and human health

Female Anopheles mosquito cannot transmit elephantiasis because 

  1. Filarial worms (microfilaria) do not enter Anopheles mosquito.

  2. Microfilaria worms are digested in the gut of Anopheles.

  3. Anopheles mosquito does not bite humans suffering from filariasis.

  4. Mouth part of Anopheles mosquito are not compatible to microfilaria.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Female Anopheles mosquito is a vector of the parasite called Plasmodium that causes malaria. Female Anopheles mosquito picks up the parasite from infected people when they bite to obtain blood needed to nurture their eggs. It cannot transmit elephantiasis because the filarial worms like wuchararia do not enter Anopheles mosquito.
So the correct answer is 'filarial worms (microfilaria) do not enter Anopheles mosquito'.
Multiple choice evs mosquitoes and malaria diseases caused by mosquitoes contaminated water spreads disease water borne diseases mosquito and human health

Fish which eradicates mosquito larvae is

  1. Rohu

  2. Anabas

  3. Clarius

  4. Gambusia
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The western mosquitofish (Gambusia affinis) is a species of freshwater fish, also known commonly as simply mosquitofish. Mosquitofish were introduced directly into ecosystems in many parts of the world as a biocontrol to lower mosquito populations, which in turn negatively affected many other species in each distinct bioregion. Based on diet, mosquitofish are classified as larvivorous fish. Their diet consists of zooplankton, small insects and insect larvae, and detritus material. Mosquitofish feed on mosquito larvae at all stages of life. Adult females can consume hundreds of mosquito larvae in one day.

Multiple choice evs mosquitoes and malaria diseases caused by mosquitoes contaminated water spreads disease water borne diseases mosquito and human health

We should not allow mosquitoes to breed in our surroundings because they

  1. Multiply very fast and contaminate food

  2. Are vectors for many diseases.

  3. Bite and cause skin diseases.

  4. Are not important insects.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Mosquitoes cause more human suffering than any other organism. Mosquito acts as a vector for the bacteria and viruses, responsible for the diseases such as malaria, dengue, encephalitis and yellow fever etc. When mosquito bites a human it causes severe skin irritation through an allergic reaction to the mosquito's saliva, this is what causes the red bump and itching.

Multiple choice evs mosquitoes and malaria diseases caused by mosquitoes contaminated water spreads disease water borne diseases mosquito and human health

Vector of malarial parasite is____________.

  1. Male Culex

  2. Female Anopheles

  3. Female Aedes

  4. Female Culex
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Malaria is caused by Plasmodium parasites. The parasites are spread to people through the bites of infected female Anopheles mosquitoes, called "malaria vectors."

So, the correct answer is 'Female Anopheles'.
Multiple choice evs mosquitoes and malaria diseases caused by mosquitoes contaminated water spreads disease water borne diseases mosquito and human health

Which of the following pair is correct?

  1. E. Coli - parasitic

  2. Culex - elephantiasis

  3. Bed bug - kala-azar

  4. Plasmodium - sleeping sickness
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Elephantiasis is painful, swelling of the legs and genital organs. It is a classic sign of late-stage disease. It is caused by Culex mosquito which carries filarial worms. 
E.coli lives in our intestine and it is not parasitic.
Kala-azar is a parasitic disease transmitted by the bite of infected female sandflies.
Sleeping sickness is a parasitic disease of humans and other animals. It is caused by protozoa of the species Trypanosoma brucei.
So the correct option is 'Culex- elephantiasis'.
Multiple choice evs mosquitoes and malaria diseases caused by mosquitoes contaminated water spreads disease water borne diseases mosquito and human health

Female Anopheles mosquito is carrier of a pathogen that causes

  1. malaria

  2. dengue

  3. yellow fever

  4. filariasis.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Malaria is caused by the toxins produced in the human body by malarial parasite Plasmodium. Malarial parasite is carried from the infected to the healthy persons by the female Anopheles mosquito.