25 Questions
What type of metamorphosis do mosquitoes undergo?
Complete metamorphosis
Why is a blood meal necessary for female mosquitoes?
To produce eggs
How long does it take for a female mosquito to begin laying eggs?
A week
What is the purpose of the fertilized female mosquito's first action?
To obtain a blood meal
What happens immediately after a female mosquito receives a blood meal?
It starts to produce eggs
Which disease is NOT transmitted by Culex mosquitoes?
Yellow fever
What is the primary vector of filariasis in humans?
Culex mosquitoes
Which of the following viruses is NOT associated with Culex mosquitoes?
Dengue fever virus
What disease is transmitted by Aedes mosquitoes?
Dengue fever
Which mosquito species is responsible for transmitting filariasis in humans?
Culex mosquitoes
What type of mosquito is being described?
Domestic mosquito
Where can this mosquito breed?
In water tanks, barrels, latrines, and deep wells
What is the preferred biting time of this mosquito?
During the day
Which of the following is NOT a breeding site for this mosquito?
Rivers
What can be said about the breeding sites of this mosquito?
They can be found in various types of containers
What is the purpose of the fly's vomit?
To dissolve sweet food for further consumption
What fills up as the fly sucks fluids?
Its diverticulum
Why does the fly drop on sweet food?
To vomit and dissolve the food
What happens when the fly's diverticulum becomes filled?
The fly vomits
What does the fly do after vomiting on sweet food?
It sucks the dissolved food again
What is the primary difference between anthropophilic and zoophilic mosquitoes?
Their preference for human or animal blood
What type of barriers are effective against zoophilic mosquitoes?
Animal barriers
Why may anthropophilic mosquitoes not be controlled by animal barriers?
They are not attracted to animals
What could happen if anthropophilic mosquitoes are attracted to animals rather than humans?
They would be more likely to be controlled by animal barriers
What is a characteristic of zoophilic mosquitoes that distinguishes them from anthropophilic mosquitoes?
They feed on animal blood
Study Notes
Life Cycle of Mosquitoes
- Mosquitoes undergo complete metamorphosis, requiring a blood meal before egg laying
- Female mosquitoes begin laying eggs within a week after mating
- Domestic mosquitoes can breed in:
- Zeers (water tanks)
- Barrels
- Latrines
- Deep wells
- Sakias
Culex Mosquitoes
- Transmitters of diseases:
- Filaria of man (Wuchereria bancrofti)
- Rift valley fever
- Encephalitis virus
- Yellow fever
- Dengue fever
- Prefer to bite during the day
Aedes Mosquitoes
- Transmitters of diseases:
- Filaria of man (Wuchereria bancrofti)
Mosquito Feeding Habits
- Anthropophilic mosquitoes (feeding only on human blood):
- Not controlled by animal barriers
- Attracted to humans rather than animals
- Zoophilic mosquitoes (feeding on animal blood):
- Can be controlled by animal barriers
- Vomit drop process:
- Flies suck fluids until their diverticulum becomes filled
- When they drop on sweet food, they vomit fluids to dissolve it and suck it again
Learn about the life cycle of mosquitoes, including their complete metamorphosis and the female's need for a blood meal before laying eggs.
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