Begin to Be Now What You Will Be Hereafter

Kendriya vidyalaya angul

Science   EXHIBITION
Topic:-DENGUE FEVER
MADE BY:-1. RAKESH KUMAR SWAIN
                  2. SAI TARINI PATTANAIK
                  3. AMIT KUMAR DEHURY

                        What Is Mosquito ?
Mosquito (from the Spanish and Portuguese word for little fly) is a common insect in the family Culicidae (from the Latin culex meaning midge or gnat). Mosquitoes resemble crane flies (family Tipulidae) and chironomid flies (family Chironomidae), with which they are sometimes confused by the casual observer.
Mosquitoes go through four stages in their life-cycle: egg, larva, pupa, and adult or imago. Adult females lay their eggs in standing water, which can be a salt-marsh, a lake, a puddle, a natural reservoir on a plant, or an artificial water container such as a plastic bucket. The first three stages are aquatic and last 5–14 days, depending on the species and the ambient temperature; eggs hatch to become larvae, then pupae. The adult mosquito emerges from the pupa as it floats at the water surface. Adults live for 4–8 weeks.
Mosquitoes have mouthparts that are adapted for piercing the skin of plants and animals. While males typically feed on nectar and plant juices, the female needs to obtain nutrients from a "blood meal" before she can produce eggs.
There are about 3,500 species of mosquitoes found throughout the world. In some species of mosquito, the females feed on humans, and are vectors for a number of infectious diseases affecting millions of people per year. Some scientists believe that eradicating mosquitoes would have serious consequences for any ecosystem.


Life cycle :-
Larva:-
Mosquito larvae have a well-developed head with mouth brushes used for feeding, a large thorax with no legs and a segmented abdomen.
Larvae breathe through spiracles located on the eighth abdominal segment, or through a siphon, and therefore must come to the surface frequently. The larvae spend most of their time feeding on algae, bacteria, and other... [continues]

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