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Richadny Graham Britney Green Kadedra Mason Sannette Philips.

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Presentation on theme: "Richadny Graham Britney Green Kadedra Mason Sannette Philips."— Presentation transcript:

1 Richadny Graham Britney Green Kadedra Mason Sannette Philips

2  Egg : Eggs are laid one at a time or attached together to form "rafts.“ Most eggs hatch into larvae within 48 hours; others might withstand subzero winters before hatching. Water is a necessary part of their habitat. Larva: The larva (plural - larvae) lives in the water and comes to the surface to breathe. Larvae shed (molt) their skins four times, growing larger after each molt. Pupa: The pupa stage is a resting, non-feeding stage of development, but pupae are mobile, responding to light changes and moving (tumble) with a flip of their tails towards the bottom or protective areas. This is the time the mosquito changes into an adult.  Adult: The newly emerged adult rests on the surface of the water for a short time to allow itself to dry and all its body parts to harden. The wings have to spread out and dry properly before it can fly. Blood feeding and mating does not occur for a couple of days after the adults emerge.

3 . In humans, the parasites grow and multiply first in the liver cells and then in the red cells of the blood. In the blood, successive broods of parasites grow inside the red cells and destroy them, releasing daughter parasites ("merozoites") that continue the cycle by invading other red cells.  The blood stage parasites are those that cause the symptoms of malaria. When certain forms of blood stage parasites ("gametocytes") are picked up by a female Anopheles mosquito during a blood meal, they start another, different cycle of growth and multiplication in the mosquito.  After 10-18 days, the parasites are found (as "sporozoites") in the mosquito's salivary glands. When the Anopheles mosquito takes a blood meal on another human, the sporozoites are injected with the mosquito's saliva and start another human infection when they parasitize the liver cells.  Thus the mosquito carries the disease from one human to another (acting as a "vector"). Differently from the human host, the mosquito vector does not suffer from the presence of the parasites.

4  The life cycle of a house fly begins in the egg stage. A female house fly is capable of laying up to 150 eggs in a batch. Over a period of a few days, she will produce five or six batches of eggs. Female house flies favor damp, dark surfaces such as compost, manure and other decomposing organic material for egg laying  Within a day, house fly eggs hatch into larvae, also known as maggots. Maggots are legless, white insects that feed from the egg-laying site for three to five days. During this time, maggots molt several times. They then choose a dark place to pupate.  Over the course of three to six days, the pupae develop legs and wings, ultimately emerging as full-grown house flies. Within two to three days, female house flies are capable of reproduction.

5  Some mosquitoes are carriers of diseases. This means they can transmit diseases from one human or animal to another. The diseases are caused by viruses or tiny parasites. For example, a mosquito that bites an infected human or animal can pick up a virus along with the blood meal. The mosquito and virus do not harm one another but the virus reproduces inside the mosquito. Later, the mosquito can pass the viruses to other humans when biting them.

6  Wash hands.  Antibacterial soap might sound preferable to regular soap, but it really isn't. First, antibacterial soap is no better at getting rid of germs than regular soap. Second, overusing antibacterial products may be breeding stronger, more resistant bugs. Stick with regular soap instead.  Get vaccinated.  Use hand sanitizer.  Get enough sleep.  Studies show that most kids don't get enough sleep, and sleep is crucial in building supplements and good nutrition.  Supplements and good nutrition.  Fight germs in public.  Always carry a bottle of alcohol-based hand sanitizer with you and use it frequently, especially before touching food.  Do not share.  Tell your kids not to share hats, combs, or brushes with their friends -- that's an easy way to spread diseases.  Don't forget mouth germs.  Cavities are caused by germs in your mouth -- they form acids that break down tooth enamel.


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