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點解d蚊甘鍾意系污濁既地方生活..??

2007-03-17 09:48:55 · 4 個解答 · 發問者 winnie 2 in 科學 生物學

4 個解答

蚊子不獨喜歡在污濁地方生活,清潔的地方也有蚊子,其實只要是種有植物,空氣不流通和沒有風吹到的地方,也是蚊子活動的範圍。但它繁殖的地方一定是所謂"死水",即是積水的地方,所以經常清理積水,可杜絕蚊患。

2007-03-17 10:09:03 · answer #1 · answered by ? 7 · 0 0

蚊唔鍾意系污濁既地方生活, 牠們只愛有動物吸血之地方

2007-03-17 09:59:26 · answer #2 · answered by ? 5 · 0 0

It is all related to 蚊子 need to reproduces :)
Life cycle and feeding habits


圖片參考:http://upload.wikimedia.org/wikipedia/commons/thumb/c/ce/Culex_sp_larvae.png/180px-Culex_sp_larvae.png



圖片參考:http://en.wikipedia.org/skins-1.5/common/images/magnify-clip.png
Culex mosquito larvae
In most female mosquitoes, the mouth parts form a long proboscis for piercing the skin of mammals (or in some cases birds or even reptiles and amphibians) to suck their blood. As opposed to a syringe's typically smooth needle, the mosquito proboscis is highly serrated, which leaves a minimal number of points of contact with the skin being pierced — this reduces nerve stimulation to the point where the "bite" is not felt at all, which is generally the case (see the Mosquitoes and health section below for an explanation on the swelling). The females require protein for egg development and laying, and since the normal mosquito diet consists of nectar and fruit juice, which has no protein, most must drink blood. Males differ from females, with mouth parts not suitable for blood-sucking.
The mosquito undergoes complete metamorphosis, going through four distinct stages in its life cycle: egg, larva, pupa, and adult — a process that was first described by the Greek philosopher Aristotle. The length of the first three stages is dependent on the species and temperature. Culex tarsalis may complete its life cycle in 14 days at 20 °C (68 °F) and only ten days at 25 °C (77 °F). Some species have a life cycle of as little as four days, whereas in other species some adult females can live through the winter, laying their eggs in the spring. Many species of mosquito live their adult stage in roughly two weeks to two months. The larvae are the "wrigglers" or "tumblers" found in puddles or water-filled containers. These breathe air through a siphon at the tail end. The pupae are nearly as active as the larvae, but breathe through thoracic "horns" attached to the thoracic spiracles. Most larvae feed on microorganisms, but a few are predatory on other mosquito larvae. Some mosquito larvae, such as those of Wyeomyia live in unusual situations. These mosquito wigglers live either in the water collected in epiphytic bromeliads or inside water stored in carnivorous pitcher plants. Larvae of the genus Deinocerites live in crab holes along the edge of the ocean.

2007-03-17 09:54:04 · answer #3 · answered by alien3333 7 · 0 0

蚊鍾意系污濁既地方生活!

2007-03-17 09:50:02 · answer #4 · answered by Anonymous · 0 0

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